2nd Nine Weeks Assessment ( SPACE)

Front

What is a dwarf planet?

Back

A dwarf planet is a celestial body that orbits the Sun and is not large enough to clear its orbital path of other debris.

Front

Why is Venus hotter than Mercury?

Back

Venus is hotter than Mercury because it has a thick atmosphere of carbon dioxide that traps heat.

Front

What determines the phase of the moon?

Back

The phase of the moon is determined by how much of the sunlit side of the moon faces Earth.

Front

What affects the length of a planet's day?

Back

The length of a planet's day is affected by its rate of rotation.

Front

What lunar phases look like a half-moon?

Back

The first quarter and third quarter phases of the moon look like a half-moon.

Front

What is the main characteristic of a planet?

Back

A planet must orbit the Sun, be spherical in shape, and have cleared its orbital path.

Front

What is the significance of a planet's atmosphere?

Back

A planet's atmosphere can affect its temperature and weather conditions.

Front

How does distance from the Sun affect a planet?

Back

Distance from the Sun affects a planet's temperature and climate.

Front

What is the role of gravity in space?

Back

Gravity is the force that attracts objects toward one another, keeping planets in orbit around the Sun.

Front

What is a solar system?

Back

A solar system is a collection of celestial bodies, including a star and the planets, moons, asteroids, and comets that orbit it.