Learn about this simple machine and make a pulley of your own to use for fun science trials.

Make a backbone model to explore human anatomy and life science.

Planning a beach vacation? Here's a cool nature craft you can make in the sand with your child.

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

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Make edible amber fossils with your second grader to explore the fascinating world of science!

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

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

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Show your teen how to make her own beeswax lip balm. It's one of the simplest do-it-yourself activities, and it's fun to make!

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Help your child make a beautiful homemade sandcastle that will last!

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Make a kindergarten "discovery table" that reinforces both science and writing skills. Here's how:

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

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Can't make it to the beach? Bring the science of ocean waves home with this fun earth science-related craft.

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

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.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.