whats a great chemistry science fair project for a 6 grader?

Question

like a project involving things found in your household

Answer 1

you can ask your teacher about flame tests. FOr ex. if you have NaCl (table salt) and make a solution out of it, and make the flame test, the flame will be orange because of the Na.

Answer 2

How about a sealed container containing a mouse with caustic soda (sodium hydroxide) to remove the CO2. Be careful with the caustic soda. It burns you. Make sure the mouse can't come in contact with it. It removes carbon dioxide but it doesn't produce any oxygen, so it won't sustain the mouse indefinitely. Keep an eye on the mouse and open the container if it shows any sign of distress. A mouse needs about a cubic foot of air per day. On the International Space Station they use a similar device to remove CO2. They use lithium hydroxide, which is chemically similar to sodium hydroxide but lighter. Weight is an important consideration, because it costs about US$20 000 to lift a kg. into orbit. The reaction is 2NaOH+CO2= Na2CO3+H2O.

Answer 3

Get a fish tank or something and fill it with water. Find items around your house such as a rock, an apple, a paper clip. Drop them in the water to demonstrate that some items are more buoyant than others.
Or build a volcano. Use vinegar and baking soda to make it blow up.

Answer 4

well its not exactly around the house but easy to get.

zinc powder + water. Becareful becasue the reaction explodes. just take a TINY pinch of the powder and throw it into a big tupperware bowl of water.

Answer 5

bring C3H5N3O9 to school ^_^