Earth Space Science quiz featuring 15 multiple-choice questions on topics such as Earth's tilt, geology, rivers, and moon missions.
A multiple-choice quiz titled "Earth Space Science" with 15 questions covering topics like Earth's axis tilt, mountain science, river lengths, and space exploration, presented in a clean, structured format with answer options A, B, C, D.
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Show Answer Key & Explanations
Step-by-step solution for: 50+ Science worksheets for 7th Grade on Quizizz | Free & Printable
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Show Answer Key & Explanations
Step-by-step solution for: 50+ Science worksheets for 7th Grade on Quizizz | Free & Printable
Let's go through each question one by one and solve them with explanations:
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1. What is the tilt of the axis of the Earth?
- Correct Answer: D) 23.5 degrees
- Explanation: The Earth's axis is tilted at approximately 23.5 degrees relative to its orbital plane around the Sun. This tilt is responsible for the seasons.
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2. What do you call the scientific study of mountains?
- Correct Answer: D) Orology
- Explanation: *Orology* is the scientific study of mountains and mountain ranges. While "geology" is broader (study of Earth’s structure), "orology" specifically focuses on mountains.
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3. What do you call the elevation above 26,000 feet?
- Correct Answer: C) Death Zone
- Explanation: In mountaineering, the Death Zone refers to altitudes above 26,000 feet (about 8,000 meters) where the oxygen level is so low that the human body cannot acclimatize, leading to rapid deterioration.
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4. What is the longest river in the world?
- Correct Answer: B) Amazon River
- Explanation: Although the Nile River has traditionally been considered the longest, recent measurements suggest the Amazon River is slightly longer (~4,375 km vs. ~6,650 km). However, there is some debate due to measurement methods. But based on current scientific consensus, Amazon is often cited as the longest.
> Note: Some sources still list the Nile as the longest, but many modern studies favor the Amazon.
But since this is a quiz and commonly taught in schools, A) Nile River might be expected.
However, B) Amazon River is scientifically more accurate today.
✔ Best answer: B) Amazon River
---
5. What do Geologists call the circle pattern of volcanoes in the Pacific Ocean?
- Correct Answer: A) Ring of Fire
- Explanation: The Ring of Fire is a major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur due to tectonic plate boundaries.
---
6. How much of the Earth is covered in water?
- Correct Answer: C) 71%
- Explanation: About 71% of the Earth's surface is covered by water, mostly oceans.
---
7. Total amount of solid material dissolved in water is measuring _____________.
- Correct Answer: A) salinity
- Explanation: Salinity measures the total amount of dissolved salts in water, typically expressed in parts per thousand (ppt).
---
8. If the moon is illuminated on the right side it is ____ and the left side illuminated it is ______
- Correct Answer: A) waxing; waning
- Explanation:
- When the right side is lit (in the Northern Hemisphere), it's waxing (growing).
- When the left side is lit, it's waning (shrinking).
- So: Right = waxing, Left = waning
---
9. _____ is the study of positions and relationships of the sun, moon, stars, and planets in order to judge their influence on human actions.
- Correct Answer: D) astrology
- Explanation: Astrology claims that celestial bodies influence human affairs and personality. It is not a science.
- Astronomy (C) is the scientific study of celestial objects.
---
10. At _________ (the sun is far) the Earth is about 94 million miles from the sun
- Correct Answer: C) aphelion
- Explanation:
- Aphelion: Earth is farthest from the Sun (~94.5 million miles).
- Perihelion: Closest point (~91.4 million miles).
---
11. How long does it take for Earth to make one rotation?
- Correct Answer: D) 24 hours
- Explanation: One full rotation of Earth on its axis takes about 24 hours, which defines a day.
---
12. How long does it take Earth to make one revolution?
- Correct Answer: B) 365.25 days
- Explanation: One complete orbit around the Sun takes about 365.25 days, which is why we have leap years every 4 years.
---
13. To be considered a desert, there must be less than _____ inches of rainfall a year.
- Correct Answer: B) 25 inches
- Explanation: Deserts are defined as areas receiving less than 25 inches (about 635 mm) of rainfall annually. Some definitions use 10 inches, but 25 inches is a widely accepted threshold for arid climates.
> However, most standard definitions say less than 10 inches for deserts.
Wait — let's clarify:
- Desert: Typically less than 10 inches (25 cm) of rain per year.
- So correct answer should be: A) 10 inches
✔ Correct Answer: A) 10 inches
> Common definition: Deserts receive less than 10 inches (250 mm) of rainfall annually.
So A is correct.
---
14. Before becoming separate continents like today, Earth was one huge super-continent called ____________
- Correct Answer: A) Pangea
- Explanation: Pangaea (or Pangea) was the supercontinent that existed during the late Paleozoic and early Mesozoic eras before breaking apart into the continents we know today.
---
15. What mission landed man on the moon?
- Correct Answer: D) Apollo 11
- Explanation: Apollo 11 was the first manned mission to land on the Moon, on July 20, 1969, with astronauts Neil Armstrong and Buzz Aldrin.
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| Q# | Answer |
|----|--------|
| 1 | D |
| 2 | D |
| 3 | C |
| 4 | B |
| 5 | A |
| 6 | C |
| 7 | A |
| 8 | A |
| 9 | D |
| 10 | C |
| 11 | D |
| 12 | B |
| 13 | A |
| 14 | A |
| 15 | D |
---
Let me know if you'd like this formatted as a printable answer sheet!
---
1. What is the tilt of the axis of the Earth?
- Correct Answer: D) 23.5 degrees
- Explanation: The Earth's axis is tilted at approximately 23.5 degrees relative to its orbital plane around the Sun. This tilt is responsible for the seasons.
---
2. What do you call the scientific study of mountains?
- Correct Answer: D) Orology
- Explanation: *Orology* is the scientific study of mountains and mountain ranges. While "geology" is broader (study of Earth’s structure), "orology" specifically focuses on mountains.
---
3. What do you call the elevation above 26,000 feet?
- Correct Answer: C) Death Zone
- Explanation: In mountaineering, the Death Zone refers to altitudes above 26,000 feet (about 8,000 meters) where the oxygen level is so low that the human body cannot acclimatize, leading to rapid deterioration.
---
4. What is the longest river in the world?
- Correct Answer: B) Amazon River
- Explanation: Although the Nile River has traditionally been considered the longest, recent measurements suggest the Amazon River is slightly longer (~4,375 km vs. ~6,650 km). However, there is some debate due to measurement methods. But based on current scientific consensus, Amazon is often cited as the longest.
> Note: Some sources still list the Nile as the longest, but many modern studies favor the Amazon.
But since this is a quiz and commonly taught in schools, A) Nile River might be expected.
However, B) Amazon River is scientifically more accurate today.
✔ Best answer: B) Amazon River
---
5. What do Geologists call the circle pattern of volcanoes in the Pacific Ocean?
- Correct Answer: A) Ring of Fire
- Explanation: The Ring of Fire is a major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur due to tectonic plate boundaries.
---
6. How much of the Earth is covered in water?
- Correct Answer: C) 71%
- Explanation: About 71% of the Earth's surface is covered by water, mostly oceans.
---
7. Total amount of solid material dissolved in water is measuring _____________.
- Correct Answer: A) salinity
- Explanation: Salinity measures the total amount of dissolved salts in water, typically expressed in parts per thousand (ppt).
---
8. If the moon is illuminated on the right side it is ____ and the left side illuminated it is ______
- Correct Answer: A) waxing; waning
- Explanation:
- When the right side is lit (in the Northern Hemisphere), it's waxing (growing).
- When the left side is lit, it's waning (shrinking).
- So: Right = waxing, Left = waning
---
9. _____ is the study of positions and relationships of the sun, moon, stars, and planets in order to judge their influence on human actions.
- Correct Answer: D) astrology
- Explanation: Astrology claims that celestial bodies influence human affairs and personality. It is not a science.
- Astronomy (C) is the scientific study of celestial objects.
---
10. At _________ (the sun is far) the Earth is about 94 million miles from the sun
- Correct Answer: C) aphelion
- Explanation:
- Aphelion: Earth is farthest from the Sun (~94.5 million miles).
- Perihelion: Closest point (~91.4 million miles).
---
11. How long does it take for Earth to make one rotation?
- Correct Answer: D) 24 hours
- Explanation: One full rotation of Earth on its axis takes about 24 hours, which defines a day.
---
12. How long does it take Earth to make one revolution?
- Correct Answer: B) 365.25 days
- Explanation: One complete orbit around the Sun takes about 365.25 days, which is why we have leap years every 4 years.
---
13. To be considered a desert, there must be less than _____ inches of rainfall a year.
- Correct Answer: B) 25 inches
- Explanation: Deserts are defined as areas receiving less than 25 inches (about 635 mm) of rainfall annually. Some definitions use 10 inches, but 25 inches is a widely accepted threshold for arid climates.
> However, most standard definitions say less than 10 inches for deserts.
Wait — let's clarify:
- Desert: Typically less than 10 inches (25 cm) of rain per year.
- So correct answer should be: A) 10 inches
✔ Correct Answer: A) 10 inches
> Common definition: Deserts receive less than 10 inches (250 mm) of rainfall annually.
So A is correct.
---
14. Before becoming separate continents like today, Earth was one huge super-continent called ____________
- Correct Answer: A) Pangea
- Explanation: Pangaea (or Pangea) was the supercontinent that existed during the late Paleozoic and early Mesozoic eras before breaking apart into the continents we know today.
---
15. What mission landed man on the moon?
- Correct Answer: D) Apollo 11
- Explanation: Apollo 11 was the first manned mission to land on the Moon, on July 20, 1969, with astronauts Neil Armstrong and Buzz Aldrin.
---
✔ Final Answers:
| Q# | Answer |
|----|--------|
| 1 | D |
| 2 | D |
| 3 | C |
| 4 | B |
| 5 | A |
| 6 | C |
| 7 | A |
| 8 | A |
| 9 | D |
| 10 | C |
| 11 | D |
| 12 | B |
| 13 | A |
| 14 | A |
| 15 | D |
---
Let me know if you'd like this formatted as a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of 7th grade science questions and answers.
