Sun - Earth - Moon

The main source of energy on Earth is the...

• wind.

• Moon's radiation.

• Sun's radiation.

• Sun's gravity.

The Sun and Moon appear to be the same size in the sky because...

• The Sun is closer to the Earth.

• The Moon is closer to the Earth.

• The Sun's light is reflected making it look larger.

• The Sun is higher in the sky than the Moon.

We have day and night because...

• Earth rotates on its axis.

• The Sun rotates on its axis.

• Earth is tilted.

• Earth orbits the Sun.

We need to add a day to our calendar each year because...

• The axis of Earth is tilted.

• The gravitational pull of the Sun affects our orbit.

• The orbit of Earth is not exactly 365 days.

• The Moon's gravity affects our orbit.

The Moon shines because...

• it is covered in ice.

• it has craters.

• it reflects light from the Sun.

• it rotates at a high speed.

Ocean tides are caused by...

• the Moon's gravitational pull.

• strong winds.

• earthquakes.

• all of the above.

The Earth is tilted_________________ on its axis.

• 42 degrees

• 14 degrees

• 23.5 degrees

• 0 degrees

The Sun appears to move across the sky each day because...

• The Sun orbits the Earth.

• Earth orbits the Sun.

• The Sun is rotating on its axis.

• Earth is rotating on its axis.

The Moon phase for a lunar eclipse is...

• a New Moon.

• a Full Moon.

• a Quarter Moon.

The Moon phase for a solar eclipse is...

• a New Moon.

• a Full Moon.

• a Quarter Moon.