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Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Introduce your child to science with something they see everyday--their shadow!

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

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

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

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

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

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

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

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

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.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

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

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.

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

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.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

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

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

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.

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

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