This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

People have favorite flavors, but what about ants? Which ant food is the most popular?

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

This science fair project idea explores how length affects the weight a bridge can hold.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!