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Science lesson plan · 3rd grade (Year 4 in England) · 45 minutes

When an environment changes: move, adjust or die out

Animals and habitats

CCSS NGSS.3-LS4-4CCSS NGSS.3-LS4-3England: KS2 Y6 Evolution and inheritanceEngland: KS2 Y4 Living things and their habitats

Objective and success criteria

Students will: When an environment changes: move, adjust or die out.

  • 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: Adaptations to habitats

Leads to: the next skill in this area.

Materials: Animal picture cards, Habitat maps, Mini whiteboards, A diagram or short video clip of the idea, Printed student sheet (below).

Warm-up · 5 min

  • Quick retrieval from earlier learning (Adaptations to habitats). Students answer on mini whiteboards.
  • Show answers together and note who needs support in the main task.
  1. An Arctic fox's coat turns white in winter. How does this help? (It can swim faster. / It stays cooler. / It is camouflaged against the snow. / It scares other foxes.) → It is camouflaged against the snow.Prompt: What colour is the ground in winter in the Arctic?
  2. Adaptations: which statement is true? (Every animal can live in every habitat. / A giraffe's neck grew longer because its parents stretched. / Fish have gills to take oxygen from water. / Animals choose to grow adaptations when they need them.) → Fish have gills to take oxygen from water.Prompt: Adaptations take many generations to appear.
  3. Adaptations: which statement is NOT true? (Cactus spines help reduce water loss and protect it from animals. / An adaptation is a feature that helps a living thing survive in its habitat. / A giraffe's neck grew longer because its parents stretched. / Fish have gills to take oxygen from water.) → A giraffe's neck grew longer because its parents stretched.Prompt: Can an animal decide to change its body for its babies?

Hook · 5 min

  • Show a picture of an unusual animal and ask where it might live and how it survives there.
  • Share the objective: When an environment changes: move, adjust or die out. Read the success criteria together.

I do: model it · 10 min

  • Work through the example out loud, saying why you do each step, not just what you do.
  • Example: What is a likely effect of this change: a pond dries up in a drought?
  • Step 1: So the answer is: frogs and fish that cannot leave may die
  • Answer: frogs and fish that cannot leave may die
  • Pause after each step and ask a student to say what comes next.

We do: guided practice · 10 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. What is a likely effect of this change: a pond dries up in a drought? (flowers may bloom before the insects that feed on them hatch / frogs and fish that cannot leave may die / woodland birds lose nest sites and many move away / animal homes are split and crossing becomes dangerous) → frogs and fish that cannot leave may diePrompt: Which living things depend on what was lost or changed?
  2. Which kind of animal is most at risk when its habitat changes? (one that can eat only one kind of food and lives in only one place / one that can fly far / one that can live in many places / one that eats many foods) → one that can eat only one kind of food and lives in only one placePrompt: Pandas eat almost only bamboo.

You do: independent practice · 10 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 · 5 min

  • Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
  1. True or false? Changes to habitats are always caused by people. (True / False) → FalsePrompt: Think about moving, surviving and dying out.
  2. A wetland is drained to build houses. What can the ducks living there do? (fly to another wetland if one is nearby / live inside the new houses / turn into land animals overnight / grow gills) → fly to another wetland if one is nearbyPrompt: Birds can travel. Can every animal?

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: Adaptations to habitats.
  • Use concrete materials: animal picture cards.
  • 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-3.

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

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When an environment changes: move, adjust or die out

Name

Date

Score/ 8

  1. Question 1

    A wetland is drained to build houses. What can the ducks living there do?

    • A. fly to another wetland if one is nearby
    • B. turn into land animals overnight
    • C. grow gills
    • D. live inside the new houses

  2. Question 2

    True or false? Plants can walk to a new place when their habitat changes.

    • A. True
    • B. False

  3. Question 3

    What is a likely effect of this change: a forest is cut down for farmland?

    • A. woodland birds lose nest sites and many move away
    • B. frogs and fish that cannot leave may die
    • C. polar bears have less time to hunt seals on the ice
    • D. animal homes are split and crossing becomes dangerous

  4. Question 4

    After a forest fire, which living things usually return first?

    • A. old oak trees
    • B. bears
    • C. grasses and small fast-growing plants
    • D. owls that nest in big trees

  5. Question 5

    True or false? All animals can adapt to any change straight away.

    • A. True
    • B. False

  6. Question 6

    Why are wildlife bridges and tunnels built over and under busy roads?

    • A. To keep animals in one place.
    • B. So animals can watch traffic.
    • C. To give cars more space.
    • D. So animals can cross safely between parts of their habitat.

  7. Question 7

    What is a likely effect of this change: Arctic sea ice melts earlier each spring?

    • A. animal homes are split and crossing becomes dangerous
    • B. polar bears have less time to hunt seals on the ice
    • C. woodland birds lose nest sites and many move away
    • D. frogs and fish that cannot leave may die

  8. Question 8

    True or false? Some animals survive habitat change because they can eat many different foods.

    • A. True
    • B. False

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Answer key: When an environment changes: move, adjust or die out

  1. 1. A. fly to another wetland if one is nearby

  2. 2. B. False

  3. 3. A. woodland birds lose nest sites and many move away

  4. 4. C. grasses and small fast-growing plants

  5. 5. B. False

  6. 6. D. So animals can cross safely between parts of their habitat.

  7. 7. B. polar bears have less time to hunt seals on the ice

  8. 8. A. True