4. What do radio telescopes use to gather and focus radio waves? A a very large mirror
B a huge dish
C a tall rotating tower
D a set of glass lenses

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.

When a scientific theory has been tested and proved by the scientific community, it becomes a law

Technician a says that you should never jump-start a frozen battery. technician b says that a frozen battery can explode, causing injury, when jump-started. who is correct?