Light & How We SeeGrade 4 Science for Kids

How light reaches our eyes, what it passes through and why colors feel warm.

Light & How We See helps fourth graders trace light from a lamp to the brain, sort transparent, translucent and opaque materials and test which shirt color heats up most in the sun. Clear lessons on light and vision.

  • Grade 4 · Ages 9–10
  • 3 lessons
  • 3 experiments
  • 12 practice questions
  • About 25 min
Start Learning Free Open the Course
  • How We See
  • Path to the Brain
  • Transparent, Translucent, Opaque
  • Light Pass Test
  • Colors and Light
  • Shirt Heat Test

Science lab course · Grade 4

Light & How We See · Learning goals

What Your Child Will Learn

Trace light from a lamp to your brain, sort transparent, translucent and opaque things, and test which shirt color heats up most in the sun.

  • We see when light reflects off objects into our eyes, and our brain makes the picture.
  • Materials can be transparent, translucent or opaque, depending on how much light they let through.
  • Dark colors absorb more light and get hotter. White reflects light and stays cooler.

Why it matters

Why This Matters for Kids

  • How eyes work

    Kids learn that we see when light bounces off objects into our eyes.

  • Materials and light

    Sorting materials explains windows, curtains and sunglasses.

  • Color and heat

    Dark colors absorb more light, which explains why black shirts feel hot in summer.

Inside Light & How We See

How the Course Works

Each level has a short read-aloud lesson, an interactive experiment and a mini quiz.

  1. Step 1 · Lesson

    How We See

    We see things when light bounces off them and into our eyes.

  2. Step 2 · Experiment

    Path to the Brain

    Let's follow the light that lets you see an apple. Put the steps in order.

  3. Step 3 · Lesson

    Transparent, Translucent, Opaque

    Transparent things let almost all light through. You can see clearly through them.

  4. Step 4 · Experiment

    Light Pass Test

    Let's shine light through different materials. How much light gets through each one?

  5. Step 5 · Lesson

    Colors and Light

    White light is a mix of all colors.

  6. Step 6 · Experiment

    Shirt Heat Test

    Let's put four shirts in the sun with a thermometer under each and check them after 30 minutes.

Lesson preview

A Peek Inside the Lesson

This is the real lesson text your child hears, read aloud by a friendly voice.

How We See

We see things when light bounces off them and into our eyes.

Light comes from a source like the sun or a lamp.

Our eyes send a message to the brain, which makes the picture.

No light, no seeing: that's why a dark room looks black!

Transparent, Translucent, Opaque

Transparent things let almost all light through. You can see clearly through them.

Translucent things let some light through, but things look blurry.

Opaque things block all light and make shadows.

Colors and Light

White light is a mix of all colors.

A red shirt looks red because it reflects red light and absorbs the rest.

Black absorbs almost all light. Absorbed light turns into heat!

For parents

Try It at Home

Learning sticks best when kids use it in real life. Here are simple ideas from this course.

Parent Tip

Hold different materials up to a window, like wax paper, foil and plastic wrap. Your child sorts them into transparent, translucent and opaque.

Path to the Brain

  1. Sit in a dark room for a minute.
  2. Turn on a small light slowly.
  3. Notice how things appear as light reaches them.

We see when light reflects off objects into our eyes, and our brain makes the picture.

Light Pass Test

  1. Shine a flashlight through glass, tissue paper and a book.
  2. Look at the light on the wall.
  3. Which made a clear, dim or no spot?

Materials can be transparent, translucent or opaque, depending on how much light they let through.

Shirt Heat Test

  1. Put a white and a black sock in the sun.
  2. Put an ice cube in each.
  3. Which ice cube melts first?

Dark colors absorb more light and get hotter. White reflects light and stays cooler.

Practice

Grade 4 Science Practice Questions

Real questions from Light & How We See. Try them with your child, then tap to see the answer.

  1. Question 1

    How do we see objects?

    • A.Our eyes shoot out light
    • B.Light bounces off them into our eyes
    • C.We smell them
    Show answer

    Light bounces off them into our eyes

  2. Question 2

    Which word means you can see clearly through it?

    • A.Opaque
    • B.Translucent
    • C.Transparent
    Show answer

    Transparent

  3. Question 3

    Why does a red shirt look red?

    • A.It reflects red light
    • B.It absorbs red light
    • C.It makes red light
    Show answer

    It reflects red light

The full course has 12 questions with instant feedback, stars and rewards. Create a free account to play them all.

Light & How We See · Questions from parents

Frequently Asked Questions

What age is this course for?

Light & How We See is a grade 4 science course for kids ages 9–10. That is Year 5 science in the UK and Year 4 in Australia. It also works well for review in the next grade, or as a challenge for a confident younger learner.

What will my child learn?

Trace light from a lamp to your brain, sort transparent, translucent and opaque things, and test which shirt color heats up most in the sun. Along the way they practice: We see when light reflects off objects into our eyes, and our brain makes the picture; Materials can be transparent, translucent or opaque, depending on how much light they let through; Dark colors absorb more light and get hotter. White reflects light and stays cooler.

How long does the course take?

About 25 minutes in total, split into 3 short levels. Most kids finish it over two or three sessions. Progress is saved, so they can stop any time and pick up where they left off.

Is this course free?

Light & How We See is part of SkillBloom Premium, which unlocks every course in every subject. Each subject also has free courses, so your child can try SkillBloom before you decide.

Does my child need to read well to use it?

No. Every lesson has a friendly read-aloud voice, questions are read aloud too, and the pictures help kids follow along. Confident readers can turn the voice off.

Can we use it for homeschool?

Yes. SkillBloom is built for homeschooling families. Kids work through lessons, games and quizzes on their own, and the parent dashboard shows what they finished and which skills need more practice. It works on phones, tablets and laptops.

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