Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

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

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

This science project teaches students to classify different shapes of leaves.

Learning to identify and categorize different geometric shapes is a big goal for early learners. And your neighborhood is the perfect place to start!

Take the spookiness out of spiders with this web-making activity! Your child will practice talking about and creating shapes in this Halloween craft, and learn about spiders along the way.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This goofy scramble book activity will bring laughs...but also some good, solid comprehension skills too!

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

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

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Use Henri Matisse as inspiration for your preschooler or kindergartener to create a unique and funky paper shapes collage in this arts and crafts activity.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

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.

Make a Santa-shaped "wish card" holder for your child...and sneak in some solid practice in reading and writing, too!

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Here's an innovative math puzzle that you can create with your fourth grade math student.

Turn sweet treats into miniature masterpieces with this candy melting activity!

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 arts and crafts activity will help your kindergartener with shape and color recognition.

Celebrate the 100th day of school by creating a geometric, math-inspired mural in the style of Henri Matisse in this creative kindergarten grade art activity.

This game is a great way to help your child remember the names of shapes. Give it a go and before you know it, your kid will have all her shapes down pat.