Science Experiments

Posts Tagged ‘physics’

Question: Science questions i need help.?

1What does the Molecular Theory of Matter say?

a.Molecules are made of tiny matter in motion
b.Matter is made of tiny molecules in motion
c.Molecules don’t matter

2 If the Carbon nucleus has 6 protons, how many neutrons would it most likely have?

a.Carbon has no neutrons
b.2 neutrons
c.6 or more neutrons

3: If our solar system was an atom, how would electrons be represented?

a.Electricity only goes through wires
b.Perhaps an electron doesn’t really exist
c.Perhaps a comet is like a moving electron

4 How could you prove the theory that atoms are like solar systems?

a.It is unlikely we will ever know for sure
b.By doing experiments and taking data
c.This is all a known fact already

5 In the Brownian motion, we observe directly the movement of

a.water molecules
b.capillary action
c.small particles of matter

Answer: 1) b 2) c 3) actually the answer should be planets, since it is not there, the nearest answer should be (c)
4) b 5) c

Fire Tornado – Cool Science Experiment in Slow Motion

Question: WHAT TYPE OF PLANT GROWS THE FASTEST~!?!?

Hola again people! Okay, im doing a science experiment on how magnets effect plant growth and i need to find a plant that i can buy the seeds and plant it and it will start growing in about a week! It has to be something easy and managable AND measurable growht (so not like grass or something). I CANT buy plants and i can only plant them… THX~!!
btw it has to b like a flower =/

Answer: The best plant to use for school Science Experiments are bean plants. They will sprout without soil, as long as they have moisture. Removing soil means there’s one less variable you have to worry about, it also makes it possible to observe the plant’s growth a lot easier, without the soil in the way.

Plus they grow fast.

Edit: Beans do grow flowers.

Magnetism Science Experiments

Question: Science Experiment Help please?

I am doing an experiment for my science class where we have to drop pieces of paper that are of different weights, which was done by adding paper clips. In my hypothesis, I have predicted that the more paper clips are added to the paper, the faster it will fall to the ground. However, how can I justify my theory with a scientific explanation? (gravity is a constant)

Answer: wind resistance VS surface area : weight ratio.

The Balancing Butterfly Science Experiments For Kids : Positioning Counterweights for the Center of Gravity Experiment