Earths Tilt, Motions of the Earth, and the Seasons - Worksheet ... - Free Printable

Let's go through each question one by one and solve them step by step.

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Q.5. Label the seasons diagram below for the northern hemisphere.

The diagram shows Earth in four positions around the Sun, with its axis tilted at an angle (about 23.5°). The Earth orbits the Sun, and due to this tilt, different parts of Earth receive varying amounts of sunlight throughout the year, causing the seasons.

We need to label the four positions as the correct season for the Northern Hemisphere.

Here’s how to interpret the diagram:

- The Earth is tilted on its axis (shown by the "N" pointing toward the North Pole).
- As Earth orbits the Sun, the tilt remains constant in direction (pointing toward Polaris), so sometimes the Northern Hemisphere leans toward the Sun, sometimes away.

#### Key positions:
1. When the North Pole is tilted TOWARD the Sun: This is Summer in the Northern Hemisphere.
2. When the North Pole is tilted AWAY from the Sun: This is Winter in the Northern Hemisphere.
3. When the tilt is neither toward nor away (equinoxes): Equal day and night — Spring (Vernal Equinox) and Fall (Autumnal Equinox).

Now let’s identify the positions:

- Top position: North Pole tilted toward the Sun → Summer
- Bottom position: North Pole tilted away from the Sun → Winter
- Left and right positions: Earth is tilted sideways relative to the Sun → Equinoxes

But we must determine which is Spring and which is Fall.

- After Winter, Earth moves into Spring → Vernal Equinox (around March 21)
- Then Summer, then Autumnal Equinox (September 22), then Winter

So, going clockwise around the orbit:

1. Top: Summer (June 21)
2. Right: Autumn (September 22)
3. Bottom: Winter (December 21)
4. Left: Spring (March 21)

But in the diagram, the arrows show the direction of Earth's orbit. Let’s assume it's counterclockwise (which is correct for Earth’s orbit).

So starting from the top and moving counterclockwise:

- Top: North Pole tilted toward Sun → Summer
- Left: Moving toward equinox → Spring (March 21)
- Bottom: North Pole tilted away → Winter
- Right: Moving toward next equinox → Autumn

Wait — actually, if you look at the standard diagram:

- Top: Summer Solstice (June 21) – Northern Hemisphere tilted toward Sun
- Right: Autumnal Equinox (September 22)
- Bottom: Winter Solstice (December 21) – Northern Hemisphere tilted away
- Left: Vernal Equinox (March 21)

But in your diagram, the Sun is in the center, and Earth moves in a counterclockwise direction.

So let’s assign labels based on the position:

- Top box: Earth's North Pole tilted toward Sun → Summer
- Right box: Earth is at autumnal equinox → Autumn
- Bottom box: North Pole tilted away → Winter
- Left box: Earth is at vernal equinox → Spring

So the labels should be:

- Top: Summer
- Right: Autumn
- Bottom: Winter
- Left: Spring

✔ Final Answer for Q.5:

```
[ Spring ] [ Summer ]
\ /
\ /
\ /
[ Autumn ]
\
\
\
[ Winter ]
```

But since the boxes are placed around the circle:

- Top box: Summer
- Right box: Autumn
- Bottom box: Winter
- Left box: Spring

> So fill in:
> - Top: Summer
> - Right: Autumn
> - Bottom: Winter
> - Left: Spring

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Q.6. Which of the following term is defined as an imaginary line that runs through from the North Pole to the South Pole, on which the Earth spins?

Options:
a) Altitude
b) Ecliptic
c) Axis
d) Equator

Explanation:
- The axis is the imaginary line running from the North Pole to the South Pole, about which the Earth rotates.
- Altitude refers to height above sea level.
- Ecliptic is the plane of Earth’s orbit around the Sun.
- Equator is the imaginary line dividing Earth into Northern and Southern Hemispheres.

✔ Correct answer: c) Axis

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Q.7. Which of the following term is defined as an imaginary line that divides the Earth into the Northern and Southern hemispheres?

Options:
a) Altitude
b) Ecliptic
c) Axis
d) Equator

Explanation:
- The equator is the imaginary circle around the middle of Earth, exactly halfway between the poles, dividing it into two hemispheres.
- Axis is the spin axis.
- Ecliptic is the Sun’s apparent path in the sky.
- Altitude is elevation.

✔ Correct answer: d) Equator

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Q.8. The hemisphere of the Earth that is tilted away from the Sun receives _________ density of sunlight.

Options:
a) higher
b) lower

Explanation:
- When a hemisphere is tilted away from the Sun, the sunlight hits it at a lower angle (more spread out over a larger area), resulting in less intense or lower density of sunlight.
- This leads to colder temperatures and winter.
- Conversely, the hemisphere tilted toward the Sun gets more direct sunlight → higher density → summer.

✔ Correct answer: b) lower

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✔ Final Answers:

Q.5:
- Top: Summer
- Right: Autumn
- Bottom: Winter
- Left: Spring

Q.6: c) Axis
Q.7: d) Equator
Q.8: b) lower

Let me know if you'd like a visual explanation or diagram!