The Seasons educational diagram showing seasonal transitions and characteristics.
A diagram illustrating the four seasons—spring, summer, autumn, and winter—with seasonal changes, weather patterns, and corresponding illustrations.
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Show Answer Key & Explanations
Step-by-step solution for: 3rd Grade Reading Comprehension Worksheets
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Show Answer Key & Explanations
Step-by-step solution for: 3rd Grade Reading Comprehension Worksheets
The task provided in the image is about understanding the concept of seasons and how they are influenced by the tilt of the Earth's axis. Below, I will explain the solution step by step:
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The task asks:
1. Why do we have four seasons on Earth?
2. What causes the change in seasons?
The text in the image provides key information to answer these questions:
- The Earth is tilted on its axis at an angle of approximately 23.5 degrees.
- This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year.
- As the Earth orbits the Sun, this tilt results in the changing seasons.
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#### Step 1: Understanding the Tilt of the Earth
- The Earth's axis is not perpendicular to its orbital plane around the Sun. Instead, it is tilted at an angle of about 23.5 degrees.
- This tilt means that different parts of the Earth receive different amounts of sunlight depending on the time of year.
#### Step 2: How the Tilt Causes Seasons
- Summer: During summer in a hemisphere (e.g., Northern Hemisphere), that part of the Earth is tilted toward the Sun. As a result, the Sun's rays hit the Earth more directly, leading to longer days and warmer temperatures.
- Winter: During winter in a hemisphere, that part of the Earth is tilted away from the Sun. The Sun's rays hit the Earth at a more oblique angle, leading to shorter days and colder temperatures.
- Spring and Autumn: These seasons occur during the transition periods when the tilt of the Earth is neither fully toward nor away from the Sun. The amount of sunlight received is intermediate, resulting in milder temperatures.
#### Step 3: Why the Seasons Are Opposite in Different Hemispheres
- Because the Earth is a sphere and only one side can be tilted toward the Sun at a time, the seasons are opposite in the Northern and Southern Hemispheres.
- For example, when it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere, and vice versa.
#### Step 4: Example from the Text
- The text mentions that in Australia, autumn begins in March. This is because Australia is in the Southern Hemisphere, where the seasons are opposite to those in the Northern Hemisphere.
- In the Northern Hemisphere, autumn typically begins in September, while in the Southern Hemisphere, it begins in March.
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1. Why do we have four seasons on Earth?
- We have four seasons because the Earth is tilted on its axis at an angle of about 23.5 degrees. As the Earth orbits the Sun, this tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the changing seasons.
2. What causes the change in seasons?
- The change in seasons is caused by the tilt of the Earth's axis and its orbit around the Sun. The tilt determines how directly the Sun's rays hit different parts of the Earth, affecting the amount of sunlight and thus the temperature and length of daylight.
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$$
\boxed{\text{The Earth's axial tilt of about 23.5 degrees causes different parts of the Earth to receive varying amounts of sunlight as it orbits the Sun, leading to the four seasons.}}
$$
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Problem Overview
The task asks:
1. Why do we have four seasons on Earth?
2. What causes the change in seasons?
The text in the image provides key information to answer these questions:
- The Earth is tilted on its axis at an angle of approximately 23.5 degrees.
- This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year.
- As the Earth orbits the Sun, this tilt results in the changing seasons.
---
Solution Explanation
#### Step 1: Understanding the Tilt of the Earth
- The Earth's axis is not perpendicular to its orbital plane around the Sun. Instead, it is tilted at an angle of about 23.5 degrees.
- This tilt means that different parts of the Earth receive different amounts of sunlight depending on the time of year.
#### Step 2: How the Tilt Causes Seasons
- Summer: During summer in a hemisphere (e.g., Northern Hemisphere), that part of the Earth is tilted toward the Sun. As a result, the Sun's rays hit the Earth more directly, leading to longer days and warmer temperatures.
- Winter: During winter in a hemisphere, that part of the Earth is tilted away from the Sun. The Sun's rays hit the Earth at a more oblique angle, leading to shorter days and colder temperatures.
- Spring and Autumn: These seasons occur during the transition periods when the tilt of the Earth is neither fully toward nor away from the Sun. The amount of sunlight received is intermediate, resulting in milder temperatures.
#### Step 3: Why the Seasons Are Opposite in Different Hemispheres
- Because the Earth is a sphere and only one side can be tilted toward the Sun at a time, the seasons are opposite in the Northern and Southern Hemispheres.
- For example, when it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere, and vice versa.
#### Step 4: Example from the Text
- The text mentions that in Australia, autumn begins in March. This is because Australia is in the Southern Hemisphere, where the seasons are opposite to those in the Northern Hemisphere.
- In the Northern Hemisphere, autumn typically begins in September, while in the Southern Hemisphere, it begins in March.
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Final Answer
1. Why do we have four seasons on Earth?
- We have four seasons because the Earth is tilted on its axis at an angle of about 23.5 degrees. As the Earth orbits the Sun, this tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the changing seasons.
2. What causes the change in seasons?
- The change in seasons is caused by the tilt of the Earth's axis and its orbit around the Sun. The tilt determines how directly the Sun's rays hit different parts of the Earth, affecting the amount of sunlight and thus the temperature and length of daylight.
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Boxed Final Answer
$$
\boxed{\text{The Earth's axial tilt of about 23.5 degrees causes different parts of the Earth to receive varying amounts of sunlight as it orbits the Sun, leading to the four seasons.}}
$$
Parent Tip: Review the logic above to help your child master the concept of reading comprehension worksheet for 3rd grade.
