10 Fun Hands-On 4th Grade Science Experiments

10 Simple, Fun, and Engaging Science Experiments for 4th Graders

We’ve got you covered with 10 simple, fun, and engaging experiments that will have your students exploring everything from chemical reactions to the solar system. These experiments are not only easy to set up but also packed with opportunities for critical thinking and learning. 

1. Balloon Rocket: A Lesson in Reaction Time and Physics

Get ready for a fun activity that teaches reaction time and simple physics. For this experiment, you’ll need a balloon, string, straw, and a rubber band. The idea is to attach the balloon to a string and let it race across the room. This simple science experiment shows how air pressure and force propel the balloon forward.

This experiment is easy to set up with simple supplies like a plastic bag or straw and will get kids of all ages thinking about magnetic fields, force, and motion. Plus, it’s a cool experiment to share on TikTok or your classroom’s social media page to inspire other teachers!

2. Magic Soap Bubble Experiment: Exploring Surface Tension

Soap bubbles might seem like simple fun, but they provide a perfect opportunity to discuss surface tension. Using dish soap, water molecules, and a variety of different materials (like aluminum foil, pipe cleaners, or plastic bags), students can experiment with what makes the bubbles hold their shape or pop.

Try adding food coloring for a visually exciting experiment that will get 4th graders asking questions about the properties of water molecules and surface tension. They’ll be amazed at how the soap bubble forms and stays intact!

3. Lemon Juice Chemical Reaction: Exploring Chemical Reactions

For a simple but spectacular chemical reaction, try this experiment with lemon juice, baking soda, and potassium iodide. Students can experiment with different amounts of lemon juice and baking soda to watch how the reaction changes. You’ll also introduce them to different solutions, and how a chemical reaction can produce gas, changing the way materials behave.

As a fair project idea, students can test which materials create the most noticeable reaction time, or even compare the results of cold water vs. room temperature liquids. It’s a fun way to teach students about basic chemistry while they enjoy the fizzing magic!

4. Solar Oven: Harnessing the Power of the Sun

A solar oven is a classic experiment that’s as educational as it is enjoyable. Using a pizza box, aluminum foil, plastic wrap, and a few basic materials, students can create an oven powered entirely by the solar system. The best part? It allows for experimentation with reflective materials to enhance the oven’s heating power.

This hands-on activity teaches 4th graders about natural resources and how the sun’s energy works while providing them with the perfect opportunity to explore environmental science. Your students can try cooking s’mores or heating ice cubes, we promise they’ll be amazed at how the solar oven works.

5. Blind Taste Test: Exploring the Human Body

The blind taste test experiment is a fantastic way to get students thinking about the human body and the importance of hand-eye coordination. Set up a testable question to see if the students can identify the different colors or flavors of food when they can’t see them. You could use everyday items like lemon juice, baking soda, and common household items to test their sense of taste and smell.

This fun experiment also offers a chance to discuss critical thinking and the science behind how we experience food and flavors. Make sure to have students record observations to track their responses and conclusions.

6. Balloon Rocket and Static Electricity

This cool experiment combines reaction time and static electricity. For this experiment, you’ll need a balloon, a string, and a plastic soda bottle. Rub the balloon on your hair to create static electricity and watch how the balloon sticks to the wall or moves when placed near certain objects. It’s a great opportunity to explore how static electricity works and can even lead to discussions on magnetic fields.

Students can experiment with different materials to see how static electricity behaves and what it can attract. It’s a simple science experiment that shows how the laws of physics apply in real-world scenarios.

7. Rock Cycle in a Bag

The rock cycle is an excellent hands-on activity for teaching 4th graders about earth sciences. For this experiment, you’ll need a plastic bag, crushed chalk or colored sand, and water. Students can simulate the different stages of the rock cycle (igneous, sedimentary, and metamorphic) by manipulating the materials inside the bag, shaking it, and observing how the rocks change.

This experiment helps elementary students understand how rocks form and break down over time, and it’s a perfect introduction to the rock cycle in a fun, engaging way.

8. Wind Turbine: Harnessing Wind Energy

This experiment teaches physical science by exploring how wind energy can be converted into motion. Using pipe cleaners, aluminum foil, and a soda bottle, students can create a simple wind turbine. When the wind blows on the turbine, it starts to spin, demonstrating how wind can be converted into energy.

This experiment introduces students to concepts like natural resources and renewable energy, which are important topics in environmental science. It’s a great way to connect science activities to real-world applications.

9. Plant Growth: A Lesson in Life Science

For this experiment, students will observe how plants grow in different conditions. Using paper towels, seeds, and water, students can create a mini greenhouse to observe plant growth over time. By testing different conditions (such as light, water, and soil types), students can learn about the factors that affect plant growth and discuss the life cycle of plants.

This hands-on experiment will help 4th graders connect to important life science concepts and learn how plants grow in a natural environment.

10. Soap and Water Molecules: The Power of Capillary Action

This experiment involves water molecules, dish soap, and paper towels to demonstrate capillary action. Students will dip the edge of a paper towel into a cup of water and watch as the water moves up the towel, demonstrating how plants use capillary action to absorb water from the ground.

This is a great opportunity to discuss water molecules and how they behave in nature. It also shows students how even small forces like surface tension can have a big impact on how things work.

How Brisk Teaching Can Help with These Science Experiments

At Brisk Teaching, we understand how important it is for teachers to have easy access to engaging 4th grade science experiments that complement the science curriculum. That’s why we’ve developed tools to help make your lesson planning easier. From printable templates for organizing your experiments to supplies lists, and lab worksheets, we provide you with the tools to make classroom science experiments run smoothly.

When using Brisk Teaching, you’ll be able to create: 

• Printable worksheets to guide your students through each experiment, helping them track their progress and make observations.
• Interactive activities that tie into life science, earth science, and other key concepts.
• Step-by-step lesson plans that ensure you’re hitting all the key learning objectives.
• Quick tips and resources for preparing experiments, including materials lists, prep time estimates, and more.

Our goal is to give you more time to focus on teaching, while we provide the tools that bring these fun science lessons to life in your classroom.

Let’s Make Science Fun!

Science doesn’t have to be complicated. With these 10 4th grade science experiments, you can inspire your students to become young scientists, excited about critical thinking, chemical reactions, and all the amazing things that science has to offer. Whether you’re testing magnetic fields, learning about the rock cycle, or experimenting with static electricity, the key is to keep it hands-on and fun.

Brisk Teaching is here to support you every step of the way. With our resources, you’ll have everything you need to create the best 4th grade science projects and turn your students into the scientists of tomorrow. So grab your balloon rocket and get ready to ignite some curiosity in your classroom today!

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