If waves can vibrate, then what vibrates? Answer choices: - nerves - motion - waves - energy - dissolve - explode - shake - Energy.
waves

If heating a liquid can tell you when it becomes a gas, then what can be learned from heating a liquid? Answer choices: - The bending of a ray of light - When it becomes a gas - chemical equations - When it becomes a solid - kinetic energy - When its mass increases - When it condenses - matter vibrating
When it becomes a gas

Q: If an automobile uses gasoline for energy, then what do cars use for energy? Answer choices: - engines - Energy. - heat - Gasoline - energy - fossil fuels - coal - photons
A: Gasoline

Question: If heat can change stuff to liquid, then what can change stuff to liquid? Answer choices: - gas - vapors - measuring - rivers - heat - observing - Frogs - pH
Answer: heat

*Question*
If competition may cause animals to interact with other animals of their species, then competition may cause animals to do what with other animals of their species? Answer choices: - burrow - migrate - break off - disengage - kill them - mating - interact - threatened
**Answer**
interact

If caffeine constricts blood vessels, then what does caffeine do to blood vessels? Answer choices: - It expands - looseness - hydrate their cells - Constrict them - sweating - Dehydration - They may not survive. - Damages them
Constrict them