🌍 Part 1: Understanding Earth-Sun-Moon Relationships

1. Which of the following causes Earth to have different seasons?

Earth's distance from the sun changes

Earth's tilt on its axis as it orbits the sun

The moon blocks sunlight at different times

The sun gets hotter and cooler throughout the year

2. What is the main cause of ocean tides on Earth?

Wind patterns across the ocean

Earth's rotation on its axis

Gravitational pull of the moon and sun

Underwater earthquakes

3. Check all that are true about Earth's movements:

Earth rotates on its axis once every 24 hours

Earth revolves around the sun once every 365 days

Earth's axis is tilted at about 23.5 degrees

The moon orbits Earth once every month

4. When it is summer in the Northern Hemisphere, what season is it in the Southern Hemisphere?

Spring

Summer

Fall

Winter

🌊 Part 2: Tides and Gravity

5. Explain how the moon's gravity affects ocean tides. Use the words gravity, pull, and ocean in your answer.

6. Fill in the blanks using the vocabulary words below:

Word Bank: rotation, revolution, axis, orbit, tilt

a) Earth spins on its _____________ once every 24 hours, which is called _____________.

b) Earth's _____________ around the sun takes 365 days, which is called _____________.

c) The _____________ of Earth's axis causes different seasons throughout the year.

7. High tides occur about twice each day. Why do you think this happens? (Hint: Think about Earth's rotation and the moon's position.)

🎯 Part 3: Applying Your Knowledge

8. Draw a simple diagram showing Earth, the sun, and the moon. Label each object and draw an arrow showing the direction Earth orbits around the sun.

9. A student says: "It's hot in summer because Earth is closer to the sun." Explain why this student is incorrect and provide the real reason for seasons.

10. If you lived on a beach, how might understanding tides be important for your daily life? Give two specific examples.

Earth, Sun, Moon Systems

Earth, Sun, Moon Systems

🌍 Part 1: Understanding Earth-Sun-Moon Relationships

🌊 Part 2: Tides and Gravity

🎯 Part 3: Applying Your Knowledge

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