Want To Make A Rubber Egg? Your Students Do.

Materials: 1. A sunny day 2. A glass cup filled up to 3 quarters of water 3. White Paper Steps: 1. First, take the glass of water and paper to a room that is near a window. 2. Next, hold a glass of water above the paper. 3. Finally, watch the sunlight pass through the glass and form a rainbow. Lesson: A rainbow can be found in a water fountain or in the mist of a waterfall. Rainbows form when the sunlight bends as it passes through raindrops in the sky. The sunlight refracts and separates into red, violet, yellow, orange, green, blue, and indigo.

Density experiment. Salt water has a higher density than fresh water, causing the egg to float in it! 

This bizarre-looking creature, which lurks off the coast of Chile and Peru, is part of a family of sea-dwelling marine invertebrates known as sea squirts. Despite the fact that they resemble rocks so much that they are nearly indistinguishable when surrounded by them, they contain a mass of organs surrounded by layers of blood, skin, and muscle, and will bleed when sliced or cut in half, just like any other animal. Referred to as ‘Piure’ in Spanish, they are considered a delicacy in South American countries, even though locals describe them as having a flavor that is bitter, soapy, and iodine-like. 

Mysteriously, sea squirts contains nearly ten million times the normal concentration of the rare element vanadium in their blood, and nobody knows why. It is thought to be used as a chemical deterrent against predation, but this is currently an unproven theory.

(Source)

A small lump of potassium reacting with water to create potassium hydroxide and hydrogen. The reaction is very exothermic, and the heat ignites the hydrogen, making a big explosion.

Using the classic baking soda and vinegar demo to blow up a balloon.

Clever Octopus Vanishes Into Homemade Quicksand

This little guy is giving Harry Houdini a run for his money.

The beautiful rings of Saturn. (NASA: 1, 2)

Materials: 1. A flat tray 2. Food coloring 3. Whole milk 4. Liquid dish soap Steps: 1. First, pour the milk into the tray. 2. Next, add 6-8 drops of different colored food coloring a onto the milk in different spots. 3. Finally, add 5 drops of liquid dish soap onto the drops of food coloring. Lesson: The dish soap breaks down the fat in the milk. While it was breaking down the fat in the milk, it causes the colors to scatter and mix to create a colorful show!

Chemical indicators change color when they come into contact with certain substances. Make your own and film the results.