name a benefit of using solar energy
no pollution, almost always sun, cheap once it is assembled
round this number to the nearest unit
26.78
27
What transformation of energy has happened when you use a fan?
electrical to mechanical, and sound
what type of energy is made from moving water
hydroelectricity
what is a multiple of 10
????
Name three types of renewable energy
solar, wind, hydroelectricity
which number is in the hundred thousands column 2 456 789
4
What energy transformation has happened when you use a flashlight
chemical energy transformed into electrical energy to light
What is a con of hydroelectricity
expensive to build a dam, floods land, can't be built just anywhere
round to the nearest tenth 3.562
3.6
Which type of energy is better...renewable or nonrenewable and why
????
What is the mean?
4, 6, 3, 7
5