Children learn the six parts of a plant...but do they really understand? Try this plant-themed meal plan to bring school science into the home.

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

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

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

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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.

This project compares the strength of one, two, and three-ply toilet paper.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!