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Science lesson plan · 5th grade (Year 6 in England) · 60 minutes

The Sun is a star: why it looks bigger and brighter than others

Space

CCSS NGSS.5-ESS1-1England: KS2 Y5 Earth and space

Objective and success criteria

Students will: The Sun is a star: why it looks bigger and brighter than others.

  • I can answer questions on today's skill on my own, without help.
  • I can explain each step and say why it works.
  • I can check my answer and spot a mistake.

Before and after

Needs first: The Sun, Moon and stars

Leads to: the next skill in this area.

Materials: Torch and ball for a Sun-Earth-Moon model, Space images, Mini whiteboards, A diagram or short video clip of the idea, Printed student sheet (below).

Warm-up · 6 min

  • Quick retrieval from earlier learning (The Sun, Moon and stars). Students answer on mini whiteboards.
  • Show answers together and note who needs support in the main task.
  1. What is the Sun? (a planet / a star / a comet / a moon) → a starPrompt: It makes its own light, like the stars at night.
  2. Sun, Moon and stars: which statement is true? (The Moon makes its own light. / The Sun goes round the Earth. / You can only see the Moon at night. / Stars are still in the sky during the day.) → Stars are still in the sky during the day.Prompt: Which objects make their own light?
  3. Sun, Moon and stars: which statement is NOT true? (You can only see the Moon at night. / The Sun is a star. / Stars are still in the sky during the day. / The Sun appears to move across the sky during the day.) → You can only see the Moon at night.Prompt: Does the Sun really move round us?

Hook · 6 min

  • Ask why we see the Moon change shape over a month.
  • Share the objective: The Sun is a star: why it looks bigger and brighter than others. Read the success criteria together.

I do: model it · 12 min

  • Work through the example out loud, saying why you do each step, not just what you do.
  • Example: About how long does sunlight take to reach Earth?
  • Step 1: Sunlight travels about 150 million km in roughly 8 minutes.
  • Step 2: So the answer is: about 8 minutes
  • Answer: about 8 minutes
  • Pause after each step and ask a student to say what comes next.

We do: guided practice · 12 min

  • Do these together. Students try each step on whiteboards before you reveal it.
  • Use the hints as prompts rather than giving the answer.
  1. Some stars are much bigger and brighter than the Sun. Why do they look like tiny dots? (They are made of ice. / They are very small. / They are extremely far away. / Clouds cover them.) → They are extremely far away.Prompt: Distance changes how bright things look.
  2. The Sun and other stars: which statement is true? (The Sun is the biggest star in space. / Stars give out their own light. / The Sun is a planet. / A star that looks dim must be small.) → Stars give out their own light.Prompt: Brightness depends on size and distance.

You do: independent practice · 17 min

  • Students work on the student sheet. Circulate and check the first two answers of every student early.
  • Students who finish: write a question of their own for a partner, with the answer.

The 8 questions are on the student sheet below, with answers in the key.

Exit ticket · 7 min

  • Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
  1. What kind of star is the Sun? (a planet that glows / the largest star known / a tiny, cold star / a medium-sized, yellowish star) → a medium-sized, yellowish starPrompt: Some stars are many times bigger; some are smaller.
  2. The Sun and other stars: which statement is true? (The Sun is the closest star to Earth. / A star that looks dim must be small. / The Sun is the biggest star in space. / The Sun is a planet.) → The Sun is the closest star to Earth.Prompt: Brightness depends on size and distance.

Watch out for

  • Everyday meanings of words getting in the way of the science meaning: define key words explicitly.
  • Remembering facts without the reason: ask "why?" and "what is the evidence?"

Support and stretch

Support

  • Review first: The Sun, Moon and stars.
  • Use concrete materials: torch and ball for a sun-earth-moon model.
  • Give the first step of each question, or a partly worked example to finish.
  • Pair with a confident partner for the guided practice.

Stretch

  • Explain a common mistake in writing and how to fix it.
  • Write a word problem that uses today's skill, then solve a partner's.

Homework and more practice

Free online practice with hints and printable worksheets for this skill: eurekami.com/science/grade-5.

Free lesson plan from eurekami.com/lesson-plan-builder

eurekami

The Sun is a star: why it looks bigger and brighter than others

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Date

Score/ 8

  1. Question 1

    The Sun and other stars: which statement is true?

    • A. The Sun is the biggest star in space.
    • B. Stars at different distances can look equally bright.
    • C. A star that looks dim must be small.
    • D. The Sun is a planet.
  2. Question 2

    Two identical lamps are switched on in a dark field. Lamp A is 24 m away and lamp B is 4 m away. Which looks brighter?

    • A. lamp A
    • B. lamp B
    • C. they look the same
  3. Question 3

    What kind of star is the Sun?

    • A. a tiny, cold star
    • B. the largest star known
    • C. a medium-sized, yellowish star
    • D. a planet that glows
  4. Question 4

    Two identical lamps are switched on in a dark field. Lamp A is 2 m away and lamp B is 8 m away. Which looks brighter?

    • A. lamp A
    • B. lamp B
    • C. they look the same
  5. Question 5

    Why does the Sun look so much bigger and brighter than other stars?

    • A. It is much closer to us than any other star.
    • B. Other stars are switched off.
    • C. It is not a star.
    • D. It is the biggest star in the universe.
  6. Question 6

    Two identical lamps are switched on in a dark field. Lamp A is 5 m away and lamp B is 15 m away. Which looks brighter?

    • A. lamp A
    • B. lamp B
    • C. they look the same
  7. Question 7

    Some stars are much bigger and brighter than the Sun. Why do they look like tiny dots?

    • A. They are made of ice.
    • B. They are extremely far away.
    • C. They are very small.
    • D. Clouds cover them.
  8. Question 8

    Two identical lamps are switched on in a dark field. Lamp A is 4 m away and lamp B is 16 m away. Which looks brighter?

    • A. lamp A
    • B. lamp B
    • C. they look the same

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Answer key: The Sun is a star: why it looks bigger and brighter than others

  1. 1. B. Stars at different distances can look equally bright.

  2. 2. B. lamp B

  3. 3. C. a medium-sized, yellowish star

  4. 4. A. lamp A

  5. 5. A. It is much closer to us than any other star.

  6. 6. A. lamp A

  7. 7. B. They are extremely far away.

  8. 8. A. lamp A