Self-assessment Earth in the Universe 7th grade

According to the geostatic model of the Earth, the internal nucleus is made of...

• ...molten metal.

• ...solid rock.

• ...solid metal.

• ...molten rock.

The orbit of the Earth around the Sun makes it so that the solstices occur...

• ...in the summer.

• ...in the winter.

• ...in the spring.

• ...in the autumn.

A solar eclipse happens when the Moon is in the phase...

• ...of the new moon.

• ...of the full moon.

• ...of the first quarter.

• ...of the third quarter.

What is/are the cause/causes of the different seasons of the year?

• The Earth's tilted axis.

• The elliptical orbit of the Earth.

• The motion of the Earth's orbit.

• The movement of the Earth's rotation.

When the difference between the high tide and low tide is at its maximum, it is known as...

• ...neap tide.

• ...high tide.

• ...spring tide.

• ...low tide.

Solar eclipses happen every year when...

• ...the Moon is in the new moon phase.

• ...the Moon blocks the sun's rays from reaching the Earth.

• ...the Moon shows its dark side.

• ...the Moon is between the Earth and the Sun.

What do you call the time that passes when the Earth completes a full orbit?

• Leap year.

• Lunar year.

• Sidereal year.

• Tropical year.

Which of these statements about the Moon is not correct?

• The Moon is the Earth's only natural satellite.

• The Moon's is composed of very different materials to the Earth.

• We don't always see the same side of the Moon.

• The Moon has no atmosphere.

What do you call the phase or phases of the Moon in which the Sun indirectly illuminates the visible face of the Moon?

• Waxing moon.

• Waning moon.

• Full moon.

• New moon.

The reference time for the different time zones is...

• ...Times Square in New York.

• ...the Tropic of Cancer.

• ...the Greenwich meridian.

• ...Antarctica.