Earth's Movements & Seasons
Moon Phases
Eclipses
Tides & Gravity
Stars & Constellations
100

What causes day and night on Earth?

(Rotation of the Earth on its axis)

100

How long does it take for the Moon to orbit the Earth?  

(About 28 days)

100

What is a lunar eclipse?

 (Earth is between the Sun and Moon)

100

What causes ocean tides on Earth?

 (Gravitational pull of the Moon)

100

What is a constellation?

 (A pattern of stars forming a shape)

200

How long does it take the Earth to orbit the Sun?

(365 days)

200

What causes the Moon’s phases?

 (Its position relative to Earth and the Sun)

200

What is a solar eclipse?

 (Moon is between the Sun and Earth)

200

When do high tides occur?

(When the Moon is overhead or on the opposite side)

200

What kind of star is the Sun?

 (A main sequence star)

300

What is the tilt of Earth’s axis in degrees?

 (23.5 degrees)

300

Name the 4 main phases of the Moon.  

 (New, First Quarter, Full, Last Quarter)

300

What causes a lunar eclipse?

 (Earth blocks sunlight from reaching the Moon)

300

Does the Sun affect tides?  

 (Yes, but less than the Moon)

300

What galaxy is the Sun located in?

 (Milky Way)

400

What causes the change of seasons?  

(Earth's tilt and orbit around the Sun)

400

What phase is the Moon in when it is not visible?

 (New Moon)

400

What casts a shadow on Earth during a solar eclipse?

(The Moon)

400

What are spring tides?

(Tides during full or new moons when Sun, Earth, and Moon align)

400

Name one constellation visible from Earth.

 (e.g., Orion, Big Dipper)

500

Why does sunlight hit different parts of the Earth differently during the year?

 (Because of Earth's tilt toward or away from the Sun)

500

What is a Waning Crescent?

 (When the lighted side of the Moon is getting smaller)

500

True or False: During a solar eclipse, the Earth is between the Sun and Moon.  

(False)

500

Why does water bulge outward on Earth during tides?  

(Moon’s gravity pulling the water)

500

Why are constellations important?

 (Navigation, stories, identifying stars)