Science Grade 2-3

Science: The Sun as a Source of Light and Heat

Exploring how sunlight warms Earth and helps living things

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Exploring how sunlight warms Earth and helps living things

Science - Grade 2-3

Instructions: Read each problem carefully. Write your answers in complete sentences when you can. Use the hints to help you think.
  1. 1
    The Sun shines light and warmth onto Earth with plants and a child below.

    Name two things the Sun gives to Earth.

  2. 2
    A bright Sun gives off light and warmth.

    Circle the sentence that is true: A. The Sun is only a source of sound. B. The Sun is a source of light and heat. C. The Sun makes Earth cold.

  3. 3
    One rock sits in sunlight while another rock sits in shade.

    A student touches two rocks. One rock has been in the sunlight. The other rock has been in the shade. Which rock will probably feel warmer? Explain why.

  4. 4

    Why do we need sunlight during the day? Write one reason.

  5. 5
    A sunny slide and a shaded bench at a playground.

    Look at a playground on a sunny day. The slide is in the Sun, and the bench is under a tree. Which one might feel hotter, the slide or the bench?

  6. 6
    An object blocks sunlight and makes a shadow on the ground.

    Complete the sentence: A shadow forms when an object blocks ______________.

  7. 7
    Sunlight shines through a window onto a growing potted plant.

    A plant is placed near a sunny window. How does the Sun help the plant?

  8. 8
    A child safely feels a warm sidewalk on a sunny day.

    Which activity is a safe way to learn about the Sun? A. Stare directly at the Sun. B. Feel how warm a sidewalk is after sitting in sunlight. C. Look at the Sun through binoculars.

  9. 9
    A brimmed hat shades a child’s face from the Sun.

    On a sunny day, you wear a hat with a brim. How can the hat help you?

  10. 10
    An ice cube in a cooler, a shaded sidewalk, and a sunny sidewalk.

    Put these in order from coolest to warmest: a sidewalk in shade, a sidewalk in sunlight, an ice cube in a cooler.

  11. 11
    Two cups of water sit outside, one in sunlight and one in shade.

    A class puts two cups of water outside. Cup A is in sunlight. Cup B is in shade. After one hour, which cup will probably be warmer? Explain your answer.

  12. 12
    The Sun makes the day feel warm outside.

    Write one way the Sun affects the weather you feel outside.

  13. 13
    The Sun shines on plants, animals, and people on Earth.

    Explain why the Sun is important for living things on Earth.

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