Stars and Galaxies
What is the name of our galaxy?
The Milky Way
Which of the following is not a way the moon benefits the Earth?
a. it regulates tides
b. it stabilizes the Earth's axis
c. it keeps the temperatures and climate changes balanced
d. it keeps the Earth from turning flat.
d. it keep the Earth from turning flat.
What is the attractive force between any two objects called?
gravity
True or False
The Earth revolves once around the sun each year or 365 days.
True
True or False
A galaxy is a huge collection of gas, dust, and billions of stars.
True
True or False
Day and night are caused by the moon rotating on its axis once per day.
False
What is an irregular shaped rock found in the asteroid belt called?
asteroid
How can the planets stay in their orbit around the sun?
The sun's gravity keeps them in their orbit.
When a star explodes it is called a ___________.
a. black hole
b. supernova
c. starburst
d. stellar nebula
b. supernova
True or False
As we see more of the moon it is called waning.
False
Astronomy is the study of what?
stars, planets, and other object in the universe
What causes the seasons on Earth to change throughout the year?
The seasons are caused by the Earth's rotation on its axis around the sun causing different amounts of sunlight to be directed towards different areas on Earth.
What is a star?
a giant ball of hot gas made of hydrogen, helium, and other elements.
How are we able to see the moon?
It reflects the sun's light.
What do AUs and light years measure?
a. water capacity in space
b. long distances in space
c. asteroids
c. race cars
b. long distances in space
A gravitationally bound system consisting of a sun and the objects that orbit it is called what?
The solar system
Name a describe the 3 galaxies.
Spiral: a number of long arms of stars that spiral out from the center.
Elliptical: An oval shaped group of stars
Irregular: any other shaped clump of stars
How many phases are there of the moon and what are they?
8: new moon, waxing crescent, , 1st quarter, waxing gibbous, full moon, waning gibbous, 3rd quarter, and waning crescent
Explain how yearly changes in weather (seasons) impact people, animals, and plants around the world.
different crops grow during different times, different types of storms occur at different times of the year, many animals hibernate or migrate during different seasons, germs and viruses spread more rapidly during certain seasons, and people wear different types of clothing based on the seasons.
What are the planets in their order.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune