☀️ Sun & Energy
🌍 Greenhouse Effect
🪐 Solar System
🌙 Moon System
🌦️ Seasons & Sky
100

100 (DOK 1) – The Sun gives Earth this.
 

➡️ What is energy?

💡 Explanation: The Sun is the main energy source for Earth.


100

100 (DOK 1) – Gases that trap heat in the atmosphere.

💡 Explanation: These gases act like a blanket around Earth.


➡️ What are greenhouse gases?


100

100 (DOK 1) – The Sun and all objects that orbit it.

➡️ What is the solar system?

💡 Explanation: Includes planets, moons, and asteroids.


100

100 (DOK 1) – This causes day and night.

➡️ What is Earth’s rotation?

💡 Explanation: Earth spins once every 24 hours.


100

Earth is tilted about this much. 12.5°  23.5°  45°  or 90° 

What is 23.5°?


💡 Explanation: This tilt is key to seasons.


200

200 (DOK 1) – Energy from the Sun travels through space as this.

➡️ What is radiation?

💡 Explanation: Radiation can travel through empty space (no air needed).


200

200 (DOK 1) – This process keeps Earth warm enough for life.

➡️ What is the greenhouse effect?

💡 Explanation: It prevents too much heat from escaping.


200

200 (DOK 1) – The force that keeps planets in orbit.

➡️ What is gravity?

💡 Explanation: Gravity pulls objects toward each other.


200

200 (DOK 1) – The changing shapes of the Moon.

➡️ What are moon phases?

💡 Explanation: We see different parts of the lit Moon.


200

200 (DOK 1) – This causes the seasons.

➡️ What is Earth’s tilt?

Earth is tilted about 23.5°, so different parts of Earth get different amounts of sunlight during the year. This is what causes seasons—not how close Earth is to the Sun.

300

300 (DOK 2) – What happens to Earth’s surface when it absorbs sunlight?

➡️ What is it warms up?

💡 Explanation: Land and water absorb energy and increase in temperature.


300

300 (DOK 2) – What do greenhouse gases do to heat energy?

➡️ What is trap or absorb it?

💡 Explanation: They absorb heat and send some back to Earth.

300

300 (DOK 2) – Why do planets stay in orbit around the Sun?

300 (DOK 2) – Why do planets stay in orbit around the Sun?


💡 Explanation: Gravity + motion keeps them moving in a path.



300

300 (DOK 2) – What causes the phases of the Moon?

➡️ What is the Moon’s position compared to Earth and Sun?

💡 Explanation: The Moon reflects sunlight differently as it orbits.


300

300 (DOK 2) – Why is summer warmer than winter?

➡️ What is sunlight is more direct?

Sunlight is more concentrated.

400

400 (DOK 2) – What type of energy does Earth give off after warming?

➡️ What is infrared (heat energy)?

💡 Explanation: Warm objects release heat as infrared radiation.


400

400 (DOK 2) – What would likely happen if greenhouse gases disappeared?

➡️ What is Earth would become much colder?

💡 Explanation: Most heat would escape into space.


400

400 (DOK 2) – Why do planets farther away take longer to orbit?

➡️ What is they travel a longer distance?

💡 Explanation: Bigger orbit = more time.


400

400 (DOK 2) – Why don’t eclipses happen every month?

➡️ What is the Moon’s orbit is tilted?

💡 Explanation: The Moon is usually above or below alignment.


400

400 (DOK 2) – Why do daylight hours change during the year?

➡️ What is Earth’s tilt changes how long the Sun is visible?

Tilt changes how long the Sun is visible.


500

500 (DOK 3) – Explain why Earth stays warm even after the Sun goes down.

➡️ What is heat is trapped by the atmosphere and slowly released?

💡 Explanation: Earth releases heat slowly, and some is held by the atmosphere.

500

500 (DOK 3) – Explain how greenhouse gases help regulate Earth’s temperature.

➡️ What is they trap heat so Earth doesn’t get too cold or too hot?


💡 Explanation: They balance incoming and outgoing energy.

500

500 (DOK 3) – Explain how distance from the Sun affects a planet’s year.

➡️ What is farther planets have longer years because their orbits are bigger?

💡 Explanation: More distance means a longer path to travel.

500

500 (DOK 3) – Explain how the positions of the Sun, Earth, and Moon cause eclipses.

➡️ What is one object blocks sunlight from reaching another?

💡 Explanation: Alignment is needed (Sun–Moon–Earth or Sun–Earth–Moon).

500

500 (DOK 3) – Explain why seasons are caused by tilt and not distance from the Sun.

➡️ What is the angle of sunlight changes, not the distance?

💡 Explanation: Direct sunlight = more energy; tilted away = less.