HMH Unit 5.3 Lesson Check

HMH Unit 5.3 Lesson Check

Pgs 329-330

Main Vocabulary

• Axis:

• An imaginary line on which a planet rotates

• Orbit:

• The path of one object in space around another

• Revolution:

• The time taken by a celestial body to make a complete round in its orbit.

Open Ended

Explain Earth's revolution in complete sentences.

Moon Phases

• Because of the rotation and revolution of the moon, we only ever see one side of it.

• The moon goes through different phases, based on how sunlight is hitting the moon.

• The moon goes through its full cycle in about 27 days, which is almost a month.

Multiple Choice

The calendar indicates major phases of the moon for April. When will the next full moon occur after this month?

• May 20

• May 5

• May 31

• June 3

The Night Sky

• Because the Earth is moving, that means the view we see changes as we go around the sun.

• Remember, the EARTH IS MOVING, NOT THE STARS

Multiple Choice

The images show views of the night sky at a given location in winter and summer. Which of the following statements is the most accurate explanation of why the night sky changes? Select the best answer.

• Because Earth revolves around the sun, Earth is in different positions each season. In summer, Earth is on one side of the sun, and then in winter, it is on the opposite side. This changes what can be seen.

• Because Earth revolves around the sun, on some nights the sky is in one direction in the universe, and the next night it’s in the other direction. It’s just random that these two images happen to be different.

• The rotation, or spin, of Earth means the sky always looks different from month to month. It is hard to predict which constellations can be seen each season.

Multiple Choice

What time unit is based on Earth's revolution around the sun?

• day

• month

• year

• week

Multiple Choice

Earth revolves around the ______ in a circular path.

• sun

• moon

• 14

• 27

• 180

Multiple Choice

It takes about ____ days for Earth to make on revolution around the sun.

• 365

• moon

• 14

• 27

• 180

Multiple Choice

The ____ is a natural satellite of Earth.

• sun

• moon

• 14

• 27

• 180

Multiple Choice

The moon completes one orbit of Earth in about ___ days.

• sun

• moon

• 14

• 27

• 180

Think About It

• Your class is planning a trip to the science center.

• You will arrive at the science center at 10:00 am and leave at 6:30 pm.

• For your class to view stars with a telescope, it needs to be dark outside.

• What is the best time of year to plan the trip and why?