Try these printable, free science worksheets when your kids are ready to extend a science experiment and write and record their findings in a science notebook! Find various science activities for preschool through middle school. Also included are the steps for the scientific method and quick science information. You’ll find free science journal pages and a growing resource of science experiments and activity packs.

Free Printable Science Worksheet Projects

Grab a Science Worksheet!

Adding a science worksheet and journal page is the perfect way to expand a science experiment for older kids in elementary and middle school. Go ahead and start a science journal! Below, you’ll find more free printable science experiment templates.

Until now, we have enjoyed simple science activities with a fun conversation about what was happening. This is truly perfect for preschool and toddler science (all ages really)! However, this is your resource to create a science notebook or portfolio.

Also, look for more helpful (and free) science resources below and at the end of this article!

Science Experiments By Age

If you are looking for science experiments by age, we are organizing all of our experiments! Whether you need kindergarten science worksheets, science worksheets for first graders, or quick science homework activities… you’ll find everything here.

Science Experiments by Branch

Additionally, if you are looking for experiments in a specific area of science, we are organizing all of our experiments here as well.

Additional Science Experiment Collections

What is the Scientific Method for Kids?

The scientific method is a process or method of research. A problem is identified, information about the problem is gathered, a hypothesis or question is formulated from the information, and the hypothesis is tested with an experiment to prove or disprove its validity.

Sounds heavy… What in the world does that mean?!? It means you don’t need to try and solve the world’s biggest science questions! The scientific method is all about studying and learning things right around you.

As children develop practices that involve creating, gathering data evaluating, analyzing, and communicating, they can apply these critical thinking skills to any situation.

Note: The use of the best Science and Engineering Practices is also relevant to the topic of using the scientific method. Read more here and see if it fits your science planning needs.

READ MORE HERE: Using The Scientific Method with Kids

Free Science Process Pack

Within this free science process pack download, you’ll find science worksheets that work well for younger kids and then science worksheets that work well for older kids. Next, check out the cool printable science experiments below.

Note: Most of our science worksheets pair with fantastic hands-on activities!

Printable Science Worksheets, Experiments, and Activities

Here’s a fantastic collection, but not exhaustive of our printable science experiments. From preschool to 7th grade, there’s something for every age and stage. Plus, this is a growing resource. I have plenty more awesome science activities to add!

TIP: Almost every science project on this website has a free printable instruction sheet. Below is a sample of great projects, but you can use the search bar or menu to find specific activities!

Science Fair Resources

Setting up a science fair or need to participate in one this year? Our free science fair resources, including how to set up a science board, are here to help!

All About Scientists Lapbook

What is a scientist, and what does a scientist do? A lapbook is a fun way to create a mini book of information. Learn how to make a lapbook and grab a free download for the All About Scientists lapbook.

Scientist Lapbook

Variables

Variables are important to understand when setting up a science experiment or using the scientific method. What is a variable? Read, learn, and grab a free printable variable science worksheet.

PH Scale

The PH scale may seem intimidating, but this free printable PH sheet is a perfect way to dive into its science and try out a few neat experiments.

Physical Change

Understanding physical change in chemistry is easy once you get the hang of it. Plus, you can try out various hands-on activities to accompany this science worksheet.

What is Osmosis?

Set up an osmosis lab with gummy bears, potatoes, and eggs!

Atom Project for Kids

Build an atom, learn about parts of an atom, and create an atom model with these free science worksheets and easy-to-understand information.

Build an Atom

What Absorbs?

This is an awesome kindergarten and preschool science activity with or without the science data worksheet. A hands-on and playful water absorption science experiment is always a hit.

Creative Coding

Screen-free coding activities are a great way to introduce coding concepts such as algorithms and binary code to kids of all ages. Free printable coding worksheets are a perfect way to spend the day.

DNA

What is DNA? Learn all about DNA, make a candy DNA model, and use this free DNA coloring worksheet.

Stroop Effect

How does our brain work when it comes to seeing color? Try the Stroop Effect experiment and learn a little more about how the brain works. Kids will love this science activity.

Color Taste Test

Does color affect taste? This color taste test experiment also is a great science fair project.

Starburst Rock Cycle

How are sedimentary rocks formed? What is the rock cycle? Even better, you can make this project out of candy to get a taste for geology. Grab this awesome rock cycle pack.

Water Refraction

Cool magic, but it’s science! Print this water refraction science worksheet and give it a try yourself.

Water Refraction

Moon Phases

Study the moon phases with a favorite cookie! Make construction paper cookies if you don’t want to use cookies instead.

Plant Cell Model

This plant cell project is a fantastic easy science worksheet that everyone can use to explore biology.

Plant Cell Collage

Animal Cell Project

Grab this animal cell worksheet to use during your next biology lesson.

Animal Cell Collage

States of Matter

Study solids, liquids, and gasses with a hands-on experiment and this quick states of matter activity pack!

Sink/Float

Start this sink or float activity for preschool science and keep reusing it as the kids get older by adding more exciting items. The youngest scientist can enjoy dropping small toys into water whereas older scientists can explore why an apple floats or a can of soda.

Dissolving Candy

Kids love candy labs, and this dissolving candy fish experiment is easy to set up at home or in the classroom.

Gummy Bear Osmosis

A gummy bear osmosis lab is another exciting candy-themed science experiment that is slightly different from the dissolving candy fish lab.

Growing Gummy Bears

Layers of the Atmosphere

Learn about the layers of the atmosphere and their order!

Simple Machines

We have plenty of hands-on engineering projects for exploring simple machines along with these free simple machines worksheets.

Carbon Footprint Worksheet

This is a fun carbon footprint project for kids and is easy to use in the classroom and at home.

Layers of the Earth

The layers of earth are fun to build in LEGO or create with playdough while your kids work on this layers of Earth science worksheet pack!

LEGO Layers of Earth

Soil Layers

Learn about soil layers and build a model out of LEGO. What else can you use to build a model, grab your paints, and paint the layers? However you choose to demonstrate the soil layers, add this free soil layers worksheet pack to it!

LEGO Soil Layers

Ocean Zones

The layers of the ocean are also called ocean zones. You can create an ocean zones model with common household supplies while working on this free ocean zones pack.

Join the Science Club!

For the best resources and exclusive projects, and printables, join us in the Library Club. You can instantly download all these projects (including more in-depth versions) and hundreds more.

More Helpful Science Resources

SCIENCE VOCABULARY

It is never too early to introduce some fantastic science words to kids. Get them started with a printable science vocabulary word list. You will want to incorporate these simple terms into your next science lesson!

WHAT IS A SCIENTIST

Think like a scientist! Act like a scientist! Scientists like you and me are also curious about the world around them. Learn about the different types of scientists and what they do to increase their understanding of their specific areas of interest. Read What Is A Scientist

SCIENCE BOOKS FOR KIDS

Sometimes the best way to introduce science concepts is through a colorfully illustrated book with characters your kids can relate to! Check out this fantastic list of science books that are teacher approved, and get ready to spark curiosity and exploration!

SCIENCE PRACTICES

A new approach to teaching science is called Best Science Practices. These eight science and engineering practices are less structured and allow a more free–flowing approach to problem-solving and finding answers. These skills are critical to developing future engineers, inventors, and scientists!