This worksheet features a diagram of the Earth orbiting the Sun, accompanied by a word bank and fill-in-the-blank sentences to teach students about the seasons.

Problem Analysis:

The task involves filling in the blanks using the provided words to describe the Earth's orbit and its relationship with the seasons. The diagram shows the Earth at different positions around the Sun, which correspond to the seasons. We need to use the given words to complete the sentences accurately.

Words Provided:

- axis
- equator
- equinox
- hemispheres
- shortest
- solstice
- summer
- winter
- 364 1/4

Solution:

#### Sentence 1:
"The Earth takes ________ days to orbit the sun."

- Answer: 364 1/4
- Explanation: The Earth takes approximately 365.25 days (or 364 1/4 days) to complete one orbit around the Sun. This is why we have a leap year every four years to account for the extra quarter day.

#### Sentence 2:
"The Earth is also spinning on an ________, tilted at 23°. This means that different parts of the Earth receive more direct rays from the ________ at different times of the year."

- First Blank: axis
- Second Blank: sun
- Explanation: The Earth spins on its axis, which is tilted at an angle of 23° relative to its orbital plane. This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the changing seasons.

#### Sentence 3:
"The ________ divides the Earth into Northern and Southern ________. When the Northern hemisphere is tilted towards the sun it is ________ in that hemisphere."

- First Blank: equator
- Second Blank: hemispheres
- Third Blank: summer
- Explanation: The equator is an imaginary line that divides the Earth into the Northern and Southern Hemispheres. When the Northern Hemisphere is tilted toward the Sun, it receives more direct sunlight, resulting in summer.

#### Sentence 4:
"On two days a year both hemispheres receive equal hours of day and night. These are called ________."

- Answer: equinox
- Explanation: On the equinoxes (spring and autumn equinox), the Sun is directly above the equator, and both hemispheres experience nearly equal hours of daylight and darkness.

#### Sentence 5:
"A ________ is when the sun is at its greatest distance from the equator. The ________ solstice is sometimes called the ________ day."

- First Blank: solstice
- Second Blank: summer
- Third Blank: longest
- Explanation: A solstice occurs when the Sun is at its greatest distance from the equator, either north or south. The summer solstice is the day with the longest period of daylight in the hemisphere experiencing summer.

Final Answer:

1. 364 1/4
2. axis, sun
3. equator, hemispheres, summer
4. equinox
5. solstice, summer, longest

Boxed Final Answer:

\[
\boxed{364 \frac{1}{4}, \text{axis, sun}, \text{equator, hemispheres, summer}, \text{equinox}, \text{solstice, summer, longest}}
\]