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Create a model of Ocean Zones (layers of the ocean) using a jar and several household ingredients!

Make Your Own Ocean Zones in a Jar - I Can Teach My Child!

Balloon science experiment. Bowl of cold water. Water bottle of hot water. Place balloon on the water bottle and watch it get sucked into the water bottle.

Science fair experiments.. Because you never know when your kid will need an idea

Newton's First: with raw eggs. Pinner said: "ok, this is cool! Our family just tried it. I wish I had, had a camera for my husband's face when I knocked the pie pan! lol The kids think this is SO cool!"

Ooh this one is even better than the one I've seen floating around lately. Density of liquids and solids.

How to make your own Rock Candy! A delicious science experiment :)

Blobs in a Bottle by sciencebob: The World's Easiest Lava Lamp! #Kids #Science

A volcano in a mug. Neat idea to show kids how they work. Much more accurate than the old baking soda/vinegar idea.

A website dedicated to science experiments using candy.

Tornado in a Bottle: Easiest DIY Science Lesson EVER, and other science experiments for little ones

What happens when you put indian corn in water? Will it grow?

Weather: Fill the cup with water. Put shaving cream on top for a cloud. Explain that when clouds get really heavy with water, it rains! Then put blue food coloring on top of the cloud, and watch it rain.

Vinegar works as a wood stain when you add a metal object in the mix and let it sit in a glass container for a week.  A handful of pennies will produce a beautiful pale Caribbean blue stain.  A wad of steel wool will give you a rich reddish hue.  A combination of tea and a metal object in vinegar will produce a black stain. Log this away for later.

75 Things to do with your kids (many are FREE)..Traditions they will remember. One of the best lists I've seen.

Ivory soap cloud.... This blog has tons of really cool kids' art and science projects - Bubble Trouble

DIY Lung Model - I like that this model uses two balloons instead of just one.

Another science fair idea: Make rainbow roses by splitting the stems into strands and placing each one in food coloring. The roses draw the food coloring into the petals.