Yr 8 Earth and Space

Ocean tides are the result of

• the rotation of Earth.

• the sun’s gravitational pull on Earth.

• changes in Earth’s orbital position around the sun.

• differences in both the sun’s and moon’s gravitational pull on Earth.

Which of the following groups of planets are all gas giants?

• Neptune, Saturn, Jupiter
• Venus, Mars, Saturn
• Mars, Venus, Mercury
• Mars, Jupiter, Neptune

Earth's rotation on its axis is what causes ______________________________.

• seasons
• moon phases
• day and night
• weather

The phases of the moon are caused by

• The Earth's shadow on the moon
• The moon is a white dwarf
• The amount of sunlight being reflected by the moon towards Earth
• The amount of light emitted by the moon towards Earth

As the moon's shape appears to get smaller, we say that the moon is _.

• Swelling

• Waxing

• Waning

• Shrinking

What moon phase is at position K?

• waxing crescent

• waxing gibbous

• new moon

• waning crescent

What causes day and night on Earth?

• the orbit of the sun

• the moon

• the rotation of the earth on its axis

• lights

Mass is....

• A measure of how much matter is in an object

• Something you calculate

• Your weight plus gravity

• How tall you are

Identify the two factors that influence gravity.

• Gravity & Mass

• Weight & Mass

• Distance & Mass

• Weight & Distance

Galileo used what instrument to help discover objects in space?

• Protractor

• Microscope

• Telescope

• Horoscope