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.

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

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.

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.

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.

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

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

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!

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.

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

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!

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.

Take your child's knowledge of shapes out of the classroom and into the real world!

Get your child writing as she describes the four seasons, then decorates a shape for each to hang in the house!

Explore geometric shapes and pattern as your child makes her very own Hawaiian kapa cloth.

Kids will love painting shapes of objects in a still life while using strong colors showing highlights and shadows.

Decorate with a banner made from paper, clover shapes and buttons to celebrate spring or St. Patrick's Day!

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!