Energy is anything that can produce a change in matter.
10
Mention 5 renewable energies.
Solar, wind, biomass, hydroelectric, geothermal
15
Mention 3 non renewable energies.
Coal, natural gas, Oil, Nuclear.
10
When a solid becomes a liquid, what is it called?
Fusion
10
When a liquid becomes a solid, what is it called?
Solidification
10
When a liquid becomes a gas, what is it called?
Vaporization (evaporation)
10
When a gas becomes a liquid, what is it called?
Condensation
10
How can I save energy? What habits can I change?
If this question has come up before, points will only be given if the answer is not repeated.
5
How can I save energy? What habits can I change?
If this question has come up before, points will only be given if the answer is not repeated.
5
How can I save energy? What habits can I change?
Walking to school instead of using a car. Turn off the lights if I'm not in the room. Take 5 minute showers. Unplugging electrical things I don't use, etc.
5
What are the 3 R's?
Reuse, reduce, recycle.
5
What is mass?
The amount of matter which is in an object.
10
What is volume?
The amount of space an object occupies.
10
How do I calculate density?
I divide the mass of something by it's volume
10
What are the 3 types of ecosystems?
Land, aquatic, mixed
10
Name 3 examples of physical changes.
Fold a paper, Shred a paper, Break a glass, melt an ice cube, Squash a paper, Roll a ball, Mix water and sugar, etc.