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!

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

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.

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

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

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

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

In this project, a basketball containing different psi is dropped to see how well it bounces.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Using a toy race car kids create a visual model of the Doppler Effect.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

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.

Engineers in training can get started with this simple wheel-and-axle construction activity.

This classic children's game demonstrates how sound travels through air vs. through a solid.

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

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

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

The objective of this science fair project is to investigate salt water density.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Using a glass fishbowl, you and your kids can create a low-humidity, open-topped terrarium perfect for easy care, drought-tolerant succulents.

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

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

This science fair project teaches students about wilting and browning of salad greens.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

This science fair project idea investigates whether air has mass and weight.

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!

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.