Jessi and Squeaks experiment with mixing things together and learn how to create a lot of foam!

Squeaks and Jessi are spending the day making art and revisiting some videos to help them remember all the different ways they can do it!

Jessi and Squeaks were supposed to go sledding today, but it's really cold outside! That won't stop them from having fun, though! Join them as they look back on some great experiments to do on a freezing cold day!

Jessi's in her lab mixing up something scary cool: potions! Join her to learn about different kinds of mixtures and how you can mix up your own potions using things you have at home!

The earliest time measurements were observations of cycles of the natural world, using patterns of changes from day to night and season to season to build calendars. More precise time-keeping eventually came along to put time in more...

Welcome back to the Fort! There's always a lot going on around here, so feel free to take a look around, say hello to all of our friends, and have fun watching some of their favorite videos! See you again soon!

Jessi and Squeaks have talked about how wells move water from one place to another before; now they're going to show you how to build your very own so you can see for yourself!

Today is a big day! Jessi and Squeaks are going to make slime, and they're going to show you how to make it, too! Plus, they'll tell you all about the gooey science that makes slime so weird and fun!

Discover 5 key chemicals that we use to make our food taste the way it's supposed to taste, look the way we expect it to look, and generally survive the journey to our tables intact.

Mr. Andersen talks you through the diffusion demo. After you finish watching this video you should be able to rank the following from smallest to largest: starch, glucose, water, IKI and the pores in the dialysis tubing.

In this video Paul Andersen explains how the temperature is a measure of the average kinetic energy of particles in an object. The temperature is proportional to the average kinetic energy according to the Kelvin scale. At absolute zero...

Want to learn how plants move water around inside them? Or do you just want to turn a stalk of celery purple? Then try our amazing color-changing celery experiment, in class or at home!

New ReviewThe power of density!

Dr. Boyd explains the concept of a hypothesis, then leads you through a simple experiment to help you develop your hypothesis-making skills.

Howcast - Bake a red velvet cake whenever you want to serve a dessert that’s as beautiful as it is delicious.

Howcast - This pretty Easter bread just looks complicated; it’s actually a cinch to make!

Howcast - The best Valentine’s Day cards to give—and get—are the ones you make from scratch.

Howcast - Building a snow globe is a fun indoor project for a cold winter day.

Howcast - You've got the basic recipe. Now learn all the different ways you can decorate those holiday sugar cookies like a pro.

Howcast - W.H. Auden wrote, “Thousands have lived without love, not one without water.” Indeed, the average American home uses 140 to 170 gallons of water every day. Cut that in half with some water-saving tips.

Howcast - Learn how to color fondant courtesy of Essential Cakes pastry chef Etwin Gordon in this Howcast video.

Howcast - Learn how to make a xylophone from water glasses in this Howcast video with Music Move Me.

Howcast - Make the perfect Christmas cookie for any party and be the hit of the smorgasbord.

Howcast - Kids will love to make and create designs with this homemade face paint. It is fun to do and easy to wash off.