Space

Question 1

Q1: What is astronomy?

Answer 1

A1: The study of stars, planets, and space.

Question 2

Q2: What is a galaxy?

Answer 2

A2: A group of stars, gas, and dust held together by gravity.

Question 3

Q3: What are satellites?

Answer 3

A3: Objects that orbit planets, like the Moon or man-made satellites.

Question 4

Q4: What do telescopes do?

Answer 4

A4: They help us see faraway objects in space.

Question 5

Q5: What is an astronomical unit (AU)?

Answer 5

A5: The distance from Earth to the Sun (about 150 million km).

Question 6

Q6: What is a light year?

Answer 6

A6: The distance light travels in one year (about 9.46 trillion km).

Question 7

Q7: What is the order of the universe?

Answer 7

A7: Galaxies → Groups → Clusters → Superclusters → Universe.

Question 8

Q8: What are the inner planets?

Answer 8

A8: Mercury, Venus, Earth, and Mars (small and rocky).

Question 9

Q9: What are the outer planets?

Answer 9

A9: Jupiter, Saturn, Uranus, and Neptune (big and made of gas).

Question 10

Q10: What is the asteroid belt?

Answer 10

A10: A ring of rocks between Mars and Jupiter.

Question 11

Q11: What is the Oort Cloud?

Answer 11

A11: A distant area full of icy objects around the solar system.

Question 12

Q12: Which planet is the biggest?

Answer 12

A12: Jupiter.

Question 13

Q13: Which planet is the smallest?

Answer 13

A13: Mercury.

Question 14

Q14: What is a meteoroid?

Answer 14

A14: A small rock in space.

Question 15

Q15: What is a meteor?

Answer 15

A15: A meteoroid that burns up in Earth’s atmosphere (a shooting star).

Question 16

Q16: What is a meteorite?

Answer 16

A16: A meteor that hits the ground.

Question 17

Q17: What is an asteroid?

Answer 17

A17: A large rock in space, usually in the asteroid belt.

Question 18

Q18: What is a comet?

Answer 18

A18: An icy object in space with a tail of gas and dust.

Question 19

Q19: What does the Moon do for Earth?

Answer 19

A19: It causes tides and stabilizes Earth’s rotation.

Question 20

Q20: What are the Moon’s phases?

Answer 20

new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter, waning crescent.

Question 21

Q21: What is a solar eclipse?

Answer 21

A21: When the Moon blocks the Sun from Earth.

Question 22

Q22: What is a lunar eclipse?

Answer 22

A22: When Earth blocks sunlight from reaching the Moon.

Question 23

Q23: What is rotation?

Answer 23

A23: A planet spinning on its axis (causes day and night).

Question 24

Q24: What is revolution?

Answer 24

A24: A planet orbiting the Sun (causes a year).

Question 25

Q25: What causes seasons?

Answer 25

A25: Earth’s tilted axis and its revolution around the Sun.

Question 26

Q26: What is an equinox?

Answer 26

A26: When day and night are the same length.

Question 27

Q27: What is a solstice?

Answer 27

A27: The longest day (summer) or longest night (winter).

Question 28

Q28: What is the Sun?

Answer 28

A28: A star at the center of our solar system.

Question 29

Q29: What are stars made of?

Answer 29

A29: Mostly hydrogen and helium.

Question 30

Q30: What is the life cycle of a star?

Answer 30

A30: Nebula → Main Star → Red Giant → White Dwarf, Neutron Star, or Black Hole.

Question 31

Q31: What are auroras?

Answer 31

A31: Colorful lights caused by the Sun’s particles hitting Earth’s atmosphere.

Question 32

Q32: What are space probes?

Answer 32

A32: Unmanned spacecraft that collect data from space.

Question 33

Q33: Why are telescopes important?

Answer 33

A33: They help us study faraway objects.

Question 34

Q34: What was a major space exploration event?

Answer 34

A34: The Moon landing in 1969 (Apollo 11).

Question 35

Q35: When is the spring equinox in the northern hemisphere?

Answer 35

A35: March 20 or 21.

Question 36

Q36: When is the fall equinox in the northern hemisphere?

Answer 36

A36: September 22 or 23.

Question 37

Q37: When is the summer solstice in the northern hemisphere?

Answer 37

A37: June 20 or 21.

Question 38

Q38: When is the winter solstice in the northern hemisphere?

Answer 38

A38: December 21 or 22.

Question 39

Q39: Do these dates switch in the southern hemisphere?

Answer 39

A39: Yes, seasons are opposite.