Let's go through each of the questions in your Earth/Space Science vocabulary quiz and solve them step by step with explanations.
---
1. What is a large circular mass that revolves around a star?
-
A) Planet ✔
- B) Solar System
- C) Spring Tide
- D) Neap Tide
✔ Answer: A) Planet
Explanation: A planet is a large, spherical body that orbits a star (like the Sun). It has enough mass to be nearly round and clears its orbit of other debris. The term "circular mass" refers to its shape and size, and "revolves around a star" defines its orbital path.
---
2. What is a system of objects that revolve around a star?
- A) Gravity
- B) Planet
- C) Solar System
✔
- D) Orbit
✔ Answer: C) Solar System
Explanation: A solar system consists of a star (like the Sun) and all the objects that orbit it—planets, moons, asteroids, comets, etc. So, it's a system of objects revolving around a central star.
---
3. What is a conceptual framework that explains how planetary systems form?
- A) Gravity
- B) Nebular Theory
✔
- C) Revolution
- D) Solar System
✔ Answer: B) Nebular Theory
Explanation: The
Nebular Theory is the scientific model that explains how stars and planetary systems form from clouds of gas and dust (nebulae). As the cloud collapses under gravity, it forms a star at the center and planets in a disk around it.
---
4. What is a force that exists between any two objects that have mass?
- A) Gravity
✔
- B) Solar System
- C) Nebular Theory
- D) Revolution
✔ Answer: A) Gravity
Explanation: Gravity is the fundamental force that attracts objects with mass toward one another. It's what keeps planets in orbit around the Sun and causes tides on Earth.
---
5. What is a type of tide that occurs when the sun, moon, and Earth are in a straight line? It is also when the alignment and gravity from the moon and the sun pull the water in the same direction?
- A) Orbit
- B) Seasons
- C) Neap Tide
- D) Spring Tide
✔
✔ Answer: D) Spring Tide
Explanation: When the Sun, Moon, and Earth align (during full or new moon), their gravitational forces combine, creating higher high tides and lower low tides. These are called
spring tides (not related to the season). The name comes from the idea of the tide "springing forth."
---
6. What is produced when the sun, moon, and Earth align at a 90° angle? It is also when the water on Earth is under the least amount of gravitational pull, because the sun's and moon's forces are opposing each other, producing the smallest rise and fall of tidal levels.
- A) Seasons
- B) Spring Tide
- C) Neap Tide
✔
- D) Orbit
✔ Answer: C) Neap Tide
Explanation: During a
neap tide, the Sun and Moon are at right angles relative to Earth (during the first and third quarters of the Moon). Their gravitational pulls partially cancel out, resulting in smaller tidal ranges—lower high tides and higher low tides.
---
Final Answers:
1.
A) Planet
2.
C) Solar System
3.
B) Nebular Theory
4.
A) Gravity
5.
D) Spring Tide
6.
C) Neap Tide
Let me know if you'd like help with the rest of the 30 questions!
Parent Tip: Review the logic above to help your child master the concept of science grade 6 worksheet.
