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Host: Michael Doig
Duration: 4:19

Materials

• Chalk
• Paper Clip
• Vinegar
• Eye Dropper
• 250ml Beaker

Weathering Fast Facts

• Weathering is the mechanical and chemical breakdown of rocks and minerals, eventually creating soils.
• Chemical weathering reactions include carbonation, hydrolysis, oxidation, solution and hydration reactions.
• Biologically produced chemicals, such as those produced by lichens and mosses, can also break down rocks.

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Host: Michael Doig
Duration: 4:16

Materials

• Oceanic Circulation Model
• Ice
• Water (Hot/Cold)
• Food Coloring

Convection Fast Facts

• Heated fluids rise because they have a lower density
• Cooled fluids fall because they have a higher density
• The Equator gets more solar energy than the poles
• Ocean water gets heated at the Equator and cooled at the poles

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Materials

Milk Bottle (or other bottle with an egg size opening)
Hard Boiled Egg
Matches
Paper

Instructions

To get the egg into the bottle you:

1. Hard boil several eggs for about 12 mins.
2. Create a tightly wrapped piece of paper that will burn slowly.
3. Light the paper and drop it into the bottle.
4. Have an assistant place the egg on the opening.
5. Watch in amazement!

To get the egg back out you:

1. Turn the bottle over and shake out any loose matter.
2. Adjust the egg so it makes a seal with the opening.
3. Place the bottle over your lips so it seals.
4. Blow forcefully into the bottle and move it away from your face.
5. Watch in amazement!

Explanation

The burning paper causes air inside of the bottle to heat up and expand forcing some of the air out of the bottle. When the egg seals the top of the bottle, the flame goes out and the air on the inside of the bottle begins to cool and contract, which results in less air pressure inside the bottle. The air pressure outside is now greater and this causes the air pressure on the outside of the bottle to push the egg into the bottle.

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Host: Michael Doig
Duration: 3:51

Materials:

• Can of Pepsi
• Can of Diet Pepsi
• Fish Tank or Large Container for Water
• Bag of Sugar
• Packet of Equal
• Spoon
• Digital Scale or Triple Beam Balance

Density Fast Facts

• Denisty = Mass/Volume (d=m/v)
• Density of Water = 1.0 g/cm3
• 1 milliliter (ml) = 1 cubic centimer (cm3)
• Density greater than one sinks
• Density less than or equal to one floats
• Saturn is the only planet that would float if you placed it in water. It has a density of about 0.7 g/cm3

Handout

If you decide to perform this experiment with your class, you can use the following handout to have your students calculate the density of the two cans of soda.
Soda Pop Drop Handout

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