What is light

Primary EducationGrade 1ScienceCV-PRI-G01-SCI-U08-L0145–60 min
Learning LabPractise with explanations. Revise with flashcards. Review what needs more work.

You will learn

  • Say that light helps us see.
  • Say we cannot see in total darkness.
  • Name where light comes from.
  • Say never to look at the Sun.

Version 0.2 · expanded edition · built from cited public sources Content is based on the official frameworks and sources listed under Sources and standards. No official endorsement is claimed. Written in the style of common primary school assessments. No exam result is promised.

Student lesson

The lesson in 60 seconds

  1. Light lets us see things.
  2. Without light it is dark and we cannot see.
  3. Light comes from sources such as the Sun and lamps.
  4. We never look directly at the Sun.

Words to know

light
what lets us see
dark
with no light
source
where something comes from
bright
giving much light

1. Discover: The dark cupboard

Ada puts a toy in a box and closes the lid. She peeps through a tiny hole. She cannot see the toy. Then she opens the lid and the toy is easy to see. “We need light to see,” says her teacher.

Think: Why could Ada not see the toy in the closed box?

2. Understand: What light does

Idea 1: Light helps us see

Light lets us see. Light goes from a source to an object and then to our eyes. In a dark place with no light, we cannot see.

Idea 2: Bright and dim

A bright light gives a lot of light. A dim light gives only a little. The Sun is the brightest light we see. A candle is dimmer.

Idea 3: Staying safe

We never look directly at the Sun, even for a short time. It can hurt our eyes. We also do not shine strong lights into eyes.

Remember: Light lets us see. We never look at the Sun.

3. Worked examples

Example 1 (I show you): Can we see?

A closed box.

  1. No light inside.
  2. It is dark.
  3. We cannot see.

Answer: We cannot see in a dark box.

Example 2 (We do it together): Where does light come from?

A lamp in a room.

  1. The lamp is a source.
  2. Light goes to objects.
  3. Then to our eyes.

Answer: The lamp gives light so we can see.

Example 3 (You try): Bright or dim?

The Sun and a candle.

Show the steps and answer
  1. The Sun is very bright.
  2. A candle is dimmer.
  3. Never look at the Sun.

Answer: The Sun is brighter. Never look at it.

Did you know?

Light travels so fast that it could go around the Earth many times in one second.

Why this matters

Light helps us see, read, play and stay safe.

4. Explore: Dark box

Look into a box with and without light.

  1. An adult makes a box with a lid and a tiny hole.
  2. Put a toy inside.
  3. Look through the hole with the lid on.
  4. Open the lid and look again.
Think about it: what did you notice?

What did you notice? We see the toy only when light reaches it.

Safety first: Never look at the Sun. Do not shine torches into eyes. Use the box in a safe place. Do not use fire.

5. Practise

Say it in a sentence

Use these starters when you talk about the lesson. Say them out loud.

  • Light lets us ___.
  • The Sun gives ___.
  • In the dark we cannot ___.
  • We never look at the ___.

Guided practice

Question 1. What does light let us do?

See.

Question 2. Can we see in the dark?

No.

Question 3. Name a light source.

The Sun or a lamp.

Independent practice

Level 1: Start

  1. What does light let us do?
  2. Can we see in the dark?
  3. Name a light source.
  4. What is bright?
  5. Do we look at the Sun?

Level 2: Grow

  1. Why do we need light?
  2. What is dark?
  3. Why not look at the Sun?

Level 3: Stretch

  1. Explain why a closed box is dark.
  2. Name three light sources.
  3. Make a safe light poster.

Answers are in the answer key below. Try first, then check.

6. Apply: Science in everyday life

What gives light at your home?

Show a sample answer

The Sun, lamps and torches.

Another one. Tell a family member one thing from this lesson. Use the words you learned.

Show a sample answer

A clear sentence that uses at least one word from Words to know.

7. Common mistakes

Mistake: “We can see in total darkness.”
Fix: We need light to see.
Another mistake: “It is safe to look at the Sun for a short time.”
Fix: Never look at the Sun.

8. Lesson summary and revision card

I can…

  • I can say that light helps us see.
  • I can say we cannot see in total darkness.
  • I can name where light comes from.
  • I can say never to look at the Sun.

9. Check and master

Answer all 14 questions. You will see feedback after each one.

1. Light lets us …

2. In total darkness we …

3. Which gives light?

4. A bright light gives …

5. Never look at the …

6. A lamp is a …

7. A closed box is …

8. A candle is … than the Sun

9. We do not shine torches into …

10. Light goes to our …

11. Dark means …

12. A torch gives …

Challenge 1. A friend wants to look at the Sun to see how bright it is. What do you say?

Challenge 2. Why can we not see a toy in a closed box?

Your result appears here after you answer every question.

10. Key takeaways

  • Light lets us see things.
  • Without light it is dark and we cannot see.
  • Light comes from sources such as the Sun and lamps.
  • We never look directly at the Sun.

11. Next lesson

Next lesson: Natural light sources. Keep going with the next idea in this course.

Exam practice

These questions are written in the style of common school and international primary assessments. Try them on your own, without looking back. Then check your answers in the marking guide. The marks are shown in brackets.

  1. What does light let us do? [1 mark]
  2. Name three light sources. [3 marks]
  3. What is dark? [1 mark]
  4. Why do we never look at the Sun? [2 marks]
  5. Explain why we cannot see in a closed box. [2 marks]

Total: 9 marks.

Marking guide and model answers
  1. See [1]
  2. Any three [1 each]
  3. No light [1]
  4. It hurts our eyes [1]; it is too bright [1]
  5. No light [1]; light must reach the object and our eyes [1]

Score guide: 8 to 9 = secure. 6 to 7 = nearly there, revise the parts you missed. Under 6 = work through the lesson again with a grown-up.

Printable worksheet

  1. What does light let us do?
  2. Can we see in the dark?
  3. Name a light source.
  4. What is bright?
  5. Do we look at the Sun?
  6. Why do we need light?
  7. What is dark?
  8. Why not look at the Sun?
  9. Explain why a closed box is dark.
  10. Name three light sources.

Homework

Find three things that give light at home. Draw them. Remember never to look at the Sun.

Answer key and marking scheme

Question Expected response Marks
1. What does light let us do? See. 1
2. Can we see in the dark? No. 1
3. Name a light source. The Sun or a lamp. 1
4. What is bright? Giving much light. 1
5. Do we look at the Sun? Never. 1
6. Why do we need light? To see. 1
7. What is dark? No light. 1
8. Why not look at the Sun? It hurts our eyes. 1
9. Explain why a closed box is dark. No light gets in. 1
10. Name three light sources. Sun, lamp, torch. 1
Total 10

Independent practice answers. Level 1: 1 See.; 2 No.; 3 The Sun or a lamp.; 4 Giving much light.; 5 Never.. Level 2: 1 To see.; 2 No light.; 3 It hurts our eyes.. Level 3: 1 No light gets in.; 2 Sun, lamp, torch.; 3 A safety message..

Quiz answers: 1 B, 2 C, 3 A, 4 B, 5 C, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 B, Challenge 2 C.

Mastery and remediation

Objective Bronze (Developing) Silver (Proficient) Gold (Advanced)
O1 Say that light helps us see Shows this with help from an adult or a picture Does this independently and explains how they know Explains it clearly and uses it in a new situation
O2 Say we cannot see in total darkness Shows this with help from an adult or a picture Does this independently and explains how they know Explains it clearly and uses it in a new situation
O3 Name where light comes from Shows this with help from an adult or a picture Does this independently and explains how they know Explains it clearly and uses it in a new situation
O4 Say never to look at the Sun Shows this with help from an adult or a picture Does this independently and explains how they know Explains it clearly and uses it in a new situation

Courseversity badge thresholds (overall quiz score): Gold = 90–100%; Silver = 80–89.9%; Bronze = 70–79.9%. A badge is never a full record of progress.

If a learner struggles

  1. Find the misconception: “We can see in total darkness.” We need light to see.
  2. Explain another way: use real objects, pictures or actions first, then words.
  3. Show a simpler example: Use a box. Show why we need light to see.
  4. Guided practice: work through one example together and let the learner try the next one.
  5. Reassess: use the quiz again or the worksheet.
  6. Move on when the learner shows Silver-level evidence independently.

For parents and guardians

In this lesson your child learns that light lets us see and how to stay safe around bright lights. You do not need to be an expert to help.

  • Look at a dark room with the light off.
  • Ask, “What do you notice?”
  • Remind your child never to look at the Sun.
  • Ask “how do you know?” after each answer, and listen.
  • Praise effort, not only right answers. Mistakes are how we learn.
  • Ten to fifteen minutes a day is better than one long session.

Teacher package

1–5. Objectives, prerequisites, materials, preparation, duration

Lesson objectives. Learners will: say that light helps us see; say we cannot see in total darkness; name where light comes from; say never to look at the Sun.

Prerequisite knowledge. None. Learners should be able to look, listen and talk about what they notice.

Materials. A cardboard box with a lid, a toy, a torch, chart paper and crayons. Low-resource options: use chalk or charcoal on a board or wall, drawings in the sand, and objects from the classroom instead of printed materials.

Preparation. Make a box with a tiny hole. Check the room is safe. Remind learners about the Sun.

Suggested duration. 45–60 minutes. It can be split into two shorter sessions.

6–9. Teaching procedure, explanation notes, guided and independent activities

Introduction (5 min). Ask, “Can you see in the dark?”

Explanation (10 min). Teach light and darkness.

Guided activity (10 min). Learners try the dark box.

Independent activity (10 min). Learners discuss light safety.

Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.

Key questions. Is there light? Can I see?

Teacher explanation notes. Start with real objects and safe, hands-on observation. Then talk about what was seen, then draw and write. Always say “how do you know?”. Keep to the safety notes, and use local, safe materials.

10–12. Differentiation, formative assessment, common misconceptions

Support. Use real objects and pictures, short sentences and a partner. Let learners point, show or draw instead of writing. Extension. Ask learners to find a new example at home and explain how they know.

Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.

Misconceptions. “We can see in total darkness.” We need light to see.

13–15. Assessment questions, answer keys, marking scheme

Use the quiz, the 9-mark exam practice and the worksheet on this page. All answers and marking guides are in the answer sections above. Re-check every answer before use.

16–19. Remediation, enrichment, homework, teacher reflection

Remediation. Use a box. Show why we need light to see. Enrichment. Look for one new example near your home or school, draw it and explain it to someone. Homework. See above.

Teacher reflection. After teaching, record: which ideas learners understood; which misconceptions occurred; which activities worked; which learners need more practice; and what to improve next time.

Sources and standards

This lesson is based on the sources below, and no official endorsement is claimed. Reference starting points: Next Generation Science Standards, Cambridge Primary Science and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.

Research used to shape this lesson. Courseversity Science curriculum, Grade 1 Unit 8, topic 1; Next Generation Science Standards, waves: light and sound; Cambridge Primary Science Stage 1, light and sound; IB Primary Years Programme, how the world works. These sources informed the lesson.

Learning Lab

14 questions in 3 rounds · 4 flashcards · targeted review. Log in to save your progress.

Learning LabPractise with explanations. Revise with flashcards. Review what needs more work.
Scroll to Top