7th Grade M-STEP Science Review #8

What are small rocky bodies that orbit the Sun called?

• Comets
• Plutoids
• Asteroids
• Dwarf Planets

What is the order of planets, starting from the Sun?

• Mars-Venus-Earth-Mercury-Jupiter-Saturn- Neptune –Uranus
• Mercury – Venus – Earth – Mars – Jupiter – Saturn – Neptune – Uranus
• Uranus – Neptune – Saturn – Jupiter – Mars – Earth – Venus – Mercury
• Earth – Venus – Mercury – Jupiter – Saturn – Neptune – Uranus

The majority of Asteroids are found in a belt located between what two planets?

• Earth and Mars
• Mars and Venus
• Mars and Jupiter
• Jupiter and Saturn

A year on Jupiter is 4,333 days long. A year on Mercury is 88 days long.  Why do planets have different lengths years?   

• A year is longer on larger planets.
• Each planet has its own orbital period.
• Some planets are larger than other planets.
• Planets exert a gravitational force on other planets.

What keeps the Earth in an orbit around the Sun?  

• The rotation speed of the Earth
• The gravitational pull of the Sun on the Earth
• The position of the Earth in the Solar System
• The pull of gravity between the Moon and the Earth

Which phase of the Moon looks like a lit circle?

• New
• Full
• Quarter
• Waxing Gibbous

What causes the Moon to wax and wane?

• Moon’s shadow as it crosses the Earth
• Earth’s shadow as it crosses the Moon
• The relative positions of the Moon and Earth
• The pull of gravity between the Moon and the Earth

The Moon and Sun appear to move in the sky from East to West.  What is responsible for that apparent movement?

• The Earth revolves around the Sun.
• The Moon and Sun rotate on their axis.
• The Sun and Moon move from East to West.
• The Earth rotates in a counter clockwise motion.

How are the Sun, Moon and Earth aligned during a lunar eclipse?

• The New Moon is between the Earth and the Sun
• The Earth is between the Sun and the Full Moon   
• The Full Moon is between the Sun and the Earth   
• The Earth is between the Sun and the New Moon

What causes high and low tides in Earth’s oceans?

• The Earth’s revolution around Sun
• The Moons gravitational pull on the Earth
• The Earth’s gravitational pull from the Sun
• The Moon’s revolution around the solar system