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Real Science Teaching. Real Classroom Experience.

I’m Amy Brown, a veteran high school biology and chemistry teacher, wife, and mom who understands the daily reality of lesson planning, grading, meetings, and everything in between. I know what it feels like to have too much to do and not enough time to do it.

After decades in the classroom, I’ve created rigorous, classroom-tested biology and chemistry resources that save you planning time while still delivering strong, meaningful science instruction. Every lab, activity, and lesson is designed to move students beyond memorization and into real scientific thinking.

If you want your students excited about science and thinking deeply without spending your entire weekend planning, you’re in the right place.

Amy Brown Biology and Chemistry Teacher

“I just love getting kids hooked on science.”

Showing posts with label lab activity. Show all posts
Showing posts with label lab activity. Show all posts

Science Skills Lab Stations: 17 Science Activities for Middle and High School

Science Skills Lab Stations: 17 ready-to-use activities for grades 9-12 covering graphing, scientific method, metric measurement, data analysis, scientific notation, and lab equipment.

Teaching essential science skills at the beginning of the school year is one of the best investments you can make as a middle or high school science teacher. Before students can be successful in biology, chemistry, physical science, or environmental science, they need to know how to use laboratory equipment, collect accurate data, create graphs, make observations, and think like scientists. When students master these foundational science skills early in the year, labs run more smoothly, students become more independent, and you spend less time answering the same questions over and over.

👉 Science Skills Chat Lab Station Activities

If you've taught science for any length of time, you've probably heard questions like these:

  • Which one of these is the graduated cylinder?
  • How do I convert from decimeters to decameters?
  • I can't do scientific notation on my calculator.
  • What are independent and dependent variables, and where do they go on a graph?
  • You wanted the graph on graph paper?
  • I measured exactly 5 grams of salt! (...in a beaker that was never massed.)
  • What do I do next?

Sound familiar?

If you're looking for a back-to-school science activity that reviews laboratory equipment, graphing, metric measurement, scientific notation, and the scientific method, these science skills lab stations are an easy way to prepare students before their first major lab. They work well in biology, chemistry, physical science, environmental science, and general science classrooms.

Students come to us with very different science backgrounds. Some are already comfortable with graphing, measurement, lab equipment, and the scientific method. Others are still learning how to read a graduated cylinder or identify the independent variable in an experiment.

That is why I believe strongly in teaching these foundational science skills before students begin more advanced labs. The time you invest early in the school year will pay off all year long.

That's exactly why I created Science Skills Chat Lab Stations, a set of 17 ready-to-use science lab stations for middle and high school classrooms that help students review graphing, metric measurement, scientific notation, laboratory equipment, the scientific method, and other foundational science skills before they begin your major lab activities.

👉 You can take a closer look at Science Skills Chat here.

Science Skills Activities That Prepare Students for the Lab

Science content changes from unit to unit, but science skills are used all year. Students need to measure, observe, calculate, graph, analyze, and communicate results whether they are studying biology, chemistry, physical science, or environmental science.

A great place to begin is with basic laboratory equipment. If students are comfortable using a graduated cylinder, metric ruler, laboratory balance, and Celsius thermometer, they will be ready when those tools are used in future lab investigations.

Science Skills Chat lab stations that teach students to use a graduated cylinder, Celsius thermometer, metric ruler, and laboratory balance before beginning science labs.

Why Science Skills Lab Stations Work Better Than a Lecture

Students do not learn to use science skills by listening to teachers talk about them. They learn by practicing. They learn by making mistakes, asking questions, correcting those mistakes, and trying again.

This is especially true for skills such as scientific notation, the scientific method, metric units, and graphing. These are not one-time lessons. Students need repeated practice with them in a setting where they can talk through the process.

Science Skills Chat activities that teach foundational science process skills, including scientific notation, the scientific method, metric SI units, and graphing and data analysis.

How to Use These Science Skills Chat Lab Stations

One of the questions I hear most often is, "How do you fit 17 stations into your schedule?"

It's a mistake to try to fit in all 17 lab stations in one activity. I usually choose four or five stations that match the skills students need before an upcoming lab. For example, before our first investigation, students might rotate through the graduated cylinder, metric ruler, laboratory balance, and Celsius thermometer stations.

Later in the year, I pull out different stations before teaching graphing, scientific notation, or the scientific method. Because each activity stands alone, the stations become a resource I can use all year instead of just during the first week of school.

Why I Created These Science Skills Chat Lab Stations

To help my students review and strengthen these skills, I created Science Skills Chat, a set of 17 collaborative lab stations focused on the essential skills students need in science class.

I use the word chat on purpose. Students are not meant to sit silently and complete worksheets in isolation. They are expected to work together, talk through problems, ask questions, and help one another understand the skill being practiced at each station.

This kind of peer tutoring is powerful. I like to arrange groups so that each group has at least one strong student. Students who are less confident often feel more comfortable asking a classmate for help than raising their hand and asking the teacher in front of the whole class. At the same time, the stronger students deepen their own understanding by explaining their thinking to someone else.

Three hands-on Science Skills Chat lab stations featuring a laboratory equipment card sort, graduated cylinder measurement, and scientific method with graphing activities for high school science students.

A Favorite Station: Lab Equipment Card Sort

One of my favorite stations is the Lab Equipment Card Sort. Students work together to match 42 common pieces of laboratory equipment with their names and functions.

This station is a great example of why the "chat" format works so well. Students are not just memorizing a list of equipment names. They are looking at the equipment, reading the function cards, discussing possibilities, and making decisions together. That kind of interaction helps the information stick.

Students complete a collaborative laboratory equipment card sort activity by matching 42 common science tools with their names and functions in Science Skills Chat lab stations.

The Scientific Method Station

The scientific method is another skill that students will use again and again. In this station, students practice identifying variables, designing an experiment, organizing data, graphing results, and drawing conclusions.

I like this station because it pulls together so many important science process skills in one place. Students are not just defining vocabulary words. They are applying the scientific method to an actual scenario and using data to support a conclusion.

Scientific Method lab station where students identify variables, analyze experimental design, graph data, and draw conclusions while working collaboratively in small groups.

What Skills Are Included?

Science Skills Chat includes 17 lab stations. Some require lab equipment, while others can be completed in the classroom or even used as homework or sub plans.

The stations include:

  • Metric Units
  • Identification of Lab Equipment
  • Scientific Notation
  • Dimensional Analysis
  • Significant Digits
  • The Scientific Method
  • Tabling, Graphing, and Analyzing Data
  • The Graduated Cylinder
  • The Metric Ruler
  • The Laboratory Balance
  • The Celsius Thermometer
  • The Bunsen Burner
  • Determining the Volume of Solids
  • Separating a Mixture
  • Determining Density
  • Accuracy, Precision, and Percentage Error
  • Scientific Drawings

You Do Not Have to Complete All 17 Stations at Once

You do not have to complete all 17 lab stations in a multi-day marathon session. That would be too much for most classes, and student retention of the skills would suffer.

I suggest choosing 4 or 5 stations that match the skills your students need most right away. For example, if you are getting ready to begin your first lab, you may want students to practice using the graduated cylinder, laboratory balance, metric ruler, and Celsius thermometer first.

Later in the year, you can pull out another group of stations when those skills are needed. This makes the resource useful long after the first week of school.

Science Skills Chat lab stations can be used throughout the year to review individual science skills as students need extra practice.

Try Science Skills Friday

One of my favorite ways to use this resource is to create a "Science Skills Friday." Choose a small group of stations and use them as a weekly review and reinforcement day.

This works especially well because students are not overwhelmed by too many stations at once. They get focused practice on a few important skills, and the completed handouts can be kept in a notebook for reference later in the year.

You can also use individual stations for review before a lab, intervention, early finishers, or emergency sub plans. Some stations do require lab equipment, but several can be completed without a full lab setup.

What Is Included in Science Skills Chat?

This resource includes everything you need to set up the stations and guide students through the activities.

Science Skills Chat includes 17 collaborative lab stations, student handouts, lab station instruction cards, a 12-page teacher guide, a 30-page answer key, and editable files.

  • 17 collaborative science skills lab stations
  • Student handouts
  • Lab station instruction cards
  • 12-page teacher guide
  • 30-page answer key
  • Editable files

"I used these during the first two weeks of school, and my students were so much more confident during our first full lab! Total game-changer." – Melissa B., HS Biology Teacher

Ready to Help Your Students Master Essential Science Skills?

If your students need practice with lab equipment, graphing, metric measurement, scientific notation, scientific method, or other foundational science skills, Science Skills Chat gives you a ready-to-use way to build those skills through discussion, collaboration, and hands-on practice.

Because the stations are ready to print and use, you spend your time helping students learn instead of creating review activities from scratch. As the year goes on, you will spend less time reteaching basic skills and more time helping students think, investigate, and understand the science content in front of them.

And honestly, how nice would it be to reduce the number of questions you get every time you go to the lab?

View Science Skills Chat in my TpT store.

Whether you teach biology, chemistry, physical science, environmental science, or general science, these foundational skills will prepare your students for a successful year in the laboratory.

Looking for more classroom ideas? Be sure to read my blog post, The Ultimate Guide to Teaching Science Process Skills, where you'll find dozens of teaching strategies, classroom activities, and science resources all in one place.

Frequently Asked Questions

When should I teach science skills?

I like to teach these science skills during the first few weeks of school before students begin more complex laboratory investigations. Building these skills early helps students become more confident using lab equipment, collecting data, graphing results, and designing experiments. I also revisit individual skills throughout the year whenever students need a refresher.

What grade levels are these science lab stations designed for?

Science Skills Chat was created primarily for middle school and high school science classrooms. The activities work well in biology, chemistry, physical science, environmental science, and integrated science courses. Many teachers also use them with honors classes, intervention groups, or as review before major labs.

Do students complete all 17 stations at one time?

No. I don't recommend this.

I usually choose four or five stations that match the skills my students need before an upcoming lab. Later in the year, I bring out different stations as those skills become important. This makes the resource useful throughout the entire school year instead of only during back-to-school season.

What science skills do students practice?

Students review many of the science process skills they use all year long, including laboratory equipment, metric measurement, scientific notation, graphing, data analysis, significant figures, dimensional analysis, scientific drawings, density, the scientific method, and experimental design.

Can these science activities be used for sub plans or review?

Absolutely. While several stations require laboratory equipment, many can be completed in a regular classroom without a lab setup. Teachers frequently use them for review days, intervention, early finishers, science stations, and emergency sub plans.

How much preparation is required for these science lab stations?

The amount of preparation depends on the stations you choose. The resource includes student handouts, station instruction cards, a teacher guide, answer keys, and editable files. Some stations only require printing, while others use common laboratory equipment such as graduated cylinders, balances, rulers, and thermometers.

Related Science Skills Blog Posts

If you are looking for more ideas for building science skills at the beginning of the year, these blog posts may also help:

Are your students struggling with the math side of chemistry? Before students can be successful in a chemistry class, they need a strong foundation in scientific measurements, significant figures, scientific notation, dimensional analysis, graphing, and more. This blog post tells you how I teach these essential skills, and shows examples of my complete Chemistry Measurement Unit that prepares students for success all year long.

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Paper Chromatography Explained: Diagram, Lab Ideas, and Classroom Tips

paper chromatography experiment diagram showing pigment separation before and after solvent movementLooking for a low-prep, high-impact paper chromatography experiment to spark curiosity in your middle or high school science classroom? Paper chromatography is a classic lab technique that allows students to separate and analyze mixtures through hands-on investigation. In this paper chromatography experiment, students observe how different substances move along chromatography paper at different rates, and a simple diagram helps illustrate how solubility, polarity, and molecular properties affect separation. Whether you are introducing the scientific method, studying photosynthesis, or exploring real-world applications of chemistry and biology, paper chromatography is a versatile and visually rewarding lab to include in your curriculum.

What Is Paper Chromatography?

Paper chromatography is a simple chromatography technique used to separate the components of a mixture. This method works by taking advantage of differences in solubility and molecular interactions, allowing substances to be identified based on how far they travel up a strip of paper in the presence of a solvent. In the real world, chromatography is an essential analytical tool used in fields such as forensics, toxicology, and pharmacology. Police labs use chromatography to detect drugs and toxins in blood and urine samples, making this paper chromatography lab a meaningful way to connect classroom science to real-world STEM careers.

If you are looking for a ready-to-use paper chromatography lab for your classroom, you can find the complete student instructions, data tables, and teacher notes in my Paper Chromatography Lab resource on Teachers Pay Teachers.

Paper Chromatography Diagrams

These paper chromatography diagrams show how a solvent moves up the chromatography paper, carrying dissolved substances with it. Different components of the mixture travel at different rates based on their solubility and attraction to the paper, resulting in visible separation. This visual helps students better understand how paper chromatography works during the experiment. 

paper chromatography diagram showing separation of pigments during a chromatography experiment

Paper Chromatography Experiment Overview

👉 The process is straightforward but packed with learning potential. A small dot or line of a sample (like ink or plant pigment) is placed near the bottom of a strip of chromatography paper. This strip is then placed vertically into a container with a shallow layer of solvent. As the solvent travels up the paper by capillary action, it carries the components of the mixture with it.

Here’s why the mixture separates:

  • Solubility: More soluble substances dissolve better in the solvent and move farther up the paper.
  • Molecular Weight: Smaller molecules tend to move more quickly than larger ones.
  • Polarity: The cellulose in the paper is polar. More polar substances stick to the paper and don’t travel as far, while non-polar substances move more freely.

Chromatography Lab Ideas for the Biology or Physical Science Classroom


💧 Ink Separation

A fun and accessible introduction to chromatography is separating black ink from markers. Many black inks are actually mixtures of several colors. When placed in water, water-soluble inks spread apart into bands of dye. Not all markers will work the same way. Permanent inks may require rubbing alcohol or another solvent to separate. This gives students the opportunity to test variables and compare results across different solvents and ink types.


Paper chromatography show separation of dyes in soluble ink pens


🍃 Plant Pigment Separation

This is a favorite in high school biology, especially during units on photosynthesis or plant biology. Students can extract pigments from leaves and discover that the color they see is actually a mix of chlorophyll-a, chlorophyll-b, xanthophyll, and carotene.

Fall is a perfect time to collect a variety of leaves from trees around your school. But if you’re teaching in winter, spinach leaves from the grocery store work just as well.


Paper chromatography showing the separation of leaf pigments and calculating Rf values

Materials for a Paper Chromatography Experiment

You don’t need a fancy setup to get started. Here's a basic chromatography kit:

  • Chromatography paper (filter paper or coffee filters can work in a pinch)
  • Small containers (test tubes, jars, or beakers)
  • Solvents (water, rubbing alcohol, acetone, or other safe household solvents)
  • Samples to test (leaves, markers, food dyes, etc.)
  • Pencils, rulers, and scissors

Tip for teachers: Always test your materials and solvents in advance. Be sure to follow proper lab safety protocols, especially if using alcohols or other flammable substances.


Paper Chromatography Lab for High School Biology and Chemistry

Paper chromatography is one of the most effective chromatography labs for high school biology and chemistry classes because it allows students to visualize molecular differences directly. This chromatography experiment helps students understand key concepts such as polarity, solubility, intermolecular forces, and molecular structure.

In high school biology, paper chromatography is commonly used to separate plant pigments during photosynthesis labs. In chemistry classes, students use chromatography to analyze ink, food dyes, and other mixtures. Because the setup is simple and inexpensive, this chromatography lab is ideal for introducing experimental design, controlled variables, and data analysis.

This paper chromatography lab also helps students connect abstract molecular concepts to real, visible results, making it one of the most memorable chromatography activities in the science classroom.

how to set up Paper chromatography experiments













What Solvent Should You Use?

The answer depends on the solubility of your sample. Water works well for many inks and food dyes. For permanent markers or plant pigments, isopropyl alcohol or acetone may be more effective.

Pro Tip: Encourage students to design their own investigations. They can test multiple solvents on the same type of ink or compare different brands of markers to determine which separates most clearly.


Why Use Paper Chromatography in the Biology Lab?

Paper chromatography gives students hands-on experience with:

  • Designing and conducting controlled experiments
  • Observing molecular behavior and physical properties
  • Making qualitative and quantitative observations
  • Connecting lab techniques to real-world applications

It’s also a visually exciting lab. Watching vivid colors separate into bands on a strip of paper never gets old, and makes for excellent lab notebook sketches!

Check out this post on my blog, Leaf Pigment Chromatography, for additional photos and information. 

You may also be interested in my osmosis lab using dialysis tubing and my potato osmosis experiment, which help students understand diffusion, osmosis, and molecular transport in cells. Check out these blog posts:


Frequently Asked Questions About Paper Chromatography

What is chromatography used for?
Chromatography is used to separate and analyze mixtures by observing how different substances move through a medium. Scientists use chromatography in fields such as forensics, medicine, environmental science, and food testing.

Why does paper chromatography work?
Paper chromatography works because different substances have different attractions to the paper and the solvent. These differences cause components of a mixture to travel at different speeds, resulting in separation.

What can students learn from a paper chromatography experiment?
Students learn key lab skills such as experimental design, data collection, observation, and analysis while exploring concepts like solubility, polarity, and molecular interactions.

How do you perform a paper chromatography lab in the classroom?

To perform a paper chromatography lab, students place a small sample of ink or plant pigment near the bottom of chromatography paper and suspend the paper in a solvent. As the solvent travels upward, it separates the mixture into its components based on solubility and polarity. Students can measure how far each component travels and calculate Rf values to analyze the results and compare substances.

This targets extremely valuable keywords:

  • paper chromatography lab procedure

  • how to do paper chromatography lab

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Ready to Try This With Your Students?

These chromatography labs have been classroom tested and include complete student instructions, answer keys, and teacher guidance for easy implementation. If you're looking for classroom-ready chromatography labs, I have two student-tested resources that include everything you need: detailed procedures, printable lab handouts, answer keys, and grading rubrics.

🔬 Matter Lab Stations: Ink Separation – Perfect for introducing lab skills and the scientific method in both middle and high school.

🌿 Plant Pigment Chromatography Lab – Ideal for exploring photosynthesis and leaf pigments in your high school biology class.

Both labs are designed to save you prep time while providing meaningful, standards-based instruction. You can find them in my Teachers Pay Teachers store.

 

 


The Perfect Hands-On Experiment for Visualizing Osmosis and Diffusion

Updated classroom osmosis and diffusion lab for biology teachers:

I have expanded this classroom osmosis and diffusion lab with more photos, teaching tips, FAQs, and related classroom resources in my updated post here:


I love it when I get to this point in my biology curriculum. We have covered the skills of scientific measurement, scientific method, and microscopy. Now the students are prepared to use these skills on more complex topics, and the labs get much more interesting. The concepts of cellular transport, structure of a membrane, movement across the membrane, active and passive transport, cytolysis and plasmolysis are leading us to more complex topics. A solid knowledge of these concepts is needed before diving into cell communication, photosynthesis (thylakoid membrane transport) and cellular respiration (cristae membrane transport).  As students develop their knowledge base, it becomes like a "connect the dot" puzzle. The student has all the dots, and you (as the teacher) are leading them from dot to dot, helping them to make those important connections.

Labs involving cellular transport are often very simple, but they pack an educational punch. The first transport lab I do is a very simple lab called Osmosis and Diffusion: Transport Across a NonLiving Membrane.

Pieces of dialysis tubing are filled with either a glucose or a starch solution which is then placed in a beaker of water. In the beaker containing the starch bag, iodine is added to the water in the beaker. In the beaker containing the glucose bag, students used a glucose test strip to determine if glucose is moving across the membrane. 



Results are recorded after 20 minutes, and again after 24 hours. The results are dramatic and my students immediately grasp the concepts taught by this lab:  
  • The smaller the molecule, the faster it can cross the membrane.
  • Some substances are too large to cross the membrane.
  • Movement of materials occurs in both directions.
  • Water is the substance that most dramatically affects the volume of a cell.
This is a very simple way to get the basic concepts of osmosis and diffusion across to our biology students. Hands-on and highly visual is the way to go.

Other resources used in my teaching of cellular transport include the following. Click the links below to view in my TPT store.