YEAR 8 SCIENCE REVISION PACK
mitochondrion
It helps us to breathe
Asteroids
Rocks
Because it is a conductor of heat
The gas particles collide with the walls of the bottle which creates a pressure
on the inside of the bottle.
The temperature of the gas inside the bottle decreases which slows down their
movement and reduces the number of collisions with the walls of the container.
stellar dust
Gas
telescope
25
Non-Renewable
hydrogen fuel
Renewable energy