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Primary Science · Year 1Chapter 5 · What animals eat
Year 1 · What Animals Eat · Lesson 5.4

Year 1 Science: Omnivores: eaters of both

Part of the Year 1 Science what animals eat chapter. Chapter overview · whole chapter on one page · Download worksheet (PDF) · Answers (PDF)

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5.4

Omnivores: eaters of both

Year 1
Identify omnivores
A kitchen. We cook food here.

An omnivore eats both plants and animals. The word omni means “all”.

People are omnivores. We eat bread, apples and carrots from plants. We eat eggs, cheese, fish and meat from animals.

Many omnivores have sharp teeth at the front and flat teeth at the back. A human has both kinds.

humanpighenbeardog
Human, pig, hen, bear and dog are omnivores.
sharp and flat teeth

Key ideas

  • An omnivore eats plants and animals.
  • Humans, pigs, hens, bears and dogs are omnivores.
  • Omnivores often have sharp teeth and flat teeth.
  • A dog is an omnivore, even if it likes meat best.
Worked example 5.4.1
Is a human an omnivore? Explain how you know.
human

Key words. A herbivore eats only plants. A carnivore eats only other animals. An omnivore eats plants and animals.

Method. Look at what a human eats, then use the rule for each group.

  1. Look at the food. Ask: is it a plant, an animal, or both?
    We eat bread and apples from plants, and eggs and fish from animals.
  2. Use the rule. An omnivore eats both plants and animals.
    A human eats both plants and animals.
  3. Write the group.
    omnivore

Check. Say the rule back: an omnivore eats both plants and animals. ✓

Watch out. Look at the food, not the size. A big animal can still eat only plants.

Worked example 5.4.2
A hen eats seeds and worms. Which group is a hen in?
hen

Key words. A herbivore eats only plants. A carnivore eats only other animals. An omnivore eats plants and animals.

Method. Look at what a hen eats, then use the rule for each group.

  1. Look at the food. Ask: is it a plant, an animal, or both?
    A hen eats seeds, which are plants, and worms, which are animals.
  2. Use the rule. An omnivore eats both plants and animals.
    A hen eats both plants and animals.
  3. Write the group.
    omnivore

Check. Say the rule back: an omnivore eats both plants and animals. ✓

Watch out. Look at the food, not the size. A big animal can still eat only plants.

Worked example 5.4.3
Is a brown bear a herbivore, a carnivore or an omnivore?
bear

Key words. A herbivore eats only plants. A carnivore eats only other animals. An omnivore eats plants and animals.

Method. Look at what a brown bear eats, then use the rule for each group.

  1. Look at the food. Ask: is it a plant, an animal, or both?
    A brown bear eats berries and roots, and it also eats fish and other animals.
  2. Use the rule. An omnivore eats both plants and animals.
    A brown bear eats both plants and animals.
  3. Write the group.
    omnivore

Check. Say the rule back: an omnivore eats both plants and animals. ✓

Watch out. Look at the food, not the size. A big animal can still eat only plants.

Watch out

Watch out: an animal that eats meat is not always a carnivore. A dog eats meat and plants, so it is an omnivore.

Try it at home

Stand in front of a mirror with a grown-up. Find your front teeth. Are they thin and sharp? Find your back teeth. Are they wide and flat? Tell a grown-up what you notice.

Exam tip

Grown-up tip. Ask: “Which food do we eat from plants? Which food do we eat from animals?” Let your child count the foods from each group on their fingers.

Exercise 5D  Omnivores

1
FFill the gap: an omnivore eats ___ and ___.
pigbear
2
FWhich one is an omnivore: lion or pig?
lionpig
3
FTrue or false? A human is an omnivore.
human
4
FTrue or false? A hen eats only plants.
hen
5
FWhich two are omnivores? cat, dog, cow, hamster
6
RExplain why a dog is an omnivore.
dog
7
FFill the gap: humans have ___ teeth at the front and ___ teeth at the back.
human
8
PSHow many omnivores are in this list: human, lion, hen, cow, bear?
humanlionhencowbear
9
RLook at the picture. Is the pig an omnivore? Explain.
humanpighenbeardog
10
PSAli says a bear eats only fish, so it is a carnivore. Is Ali right? Explain.
bear
11
PSWrite two plant foods and two animal foods that you eat.
12
RWorking scientifically: What did you notice when you looked at your teeth in the mirror? How could you find out more?
human

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