Q: Which change in the state of water particles causes the particles to become arranged in a fixed position?

OPTIONS:
- boiling
- melting
- freezing
- evaporating
A: freezing
Q: The moon goes through phases as it revolves around Earth. During which phase of the moon would it be possible for a solar eclipse to occur?

OPTIONS:
- new moon
- full moon
- waning
- waxing
A: new moon
Q: Which provides the oldest evidence for oxygen accumulation in Earth's atmosphere?

OPTIONS:
- the earliest fossils of animals
- the earliest sediments of oxidized rock
- impact craters of oxidized-iron asteroids
- extensive volcanic calderas of similar age
A: the earliest sediments of oxidized rock
Q: Helen is preparing a presentation about objects in the solar system. She includes facts about the order of the planets and their distances from the Sun. Which statement could she include in an accurate presentation?

OPTIONS:
- Mars is closer to the Sun than Earth.
- Neptune is one light-year from the Sun.
- Jupiter is farther from the Sun than Uranus.
- Earth is one astronomical unit from the Sun.
A:
Earth is one astronomical unit from the Sun.