Year 5 Science Life cycles of animals: check-up and practice test questions

Method. Think about where frogs lay their eggs.

1. Think about frogs. Frogs lay their eggs in water, as spawn.
   in water
2. Choose the group. So the group is amphibian.
   amphibian
3. Write the answer.
   amphibian

Check. Frogs are amphibians. ✓

Method. Read the description of the frog life cycle.

1. Read the description. A tadpole breathes through gills and lives in water.
   gills
2. Name the stage. So the stage is the tadpole.
   tadpole
3. Write the answer.
   tadpole

Check. Gills are used for breathing in water. ✓

Method. Read the stages in order.

1. Read the stages. The order is egg, caterpillar, chrysalis, adult butterfly.
   caterpillar, chrysalis, adult
2. Name the stage. The stage between the caterpillar and the adult is the chrysalis.
   chrysalis
3. Write the answer.
   chrysalis

Check. In the chrysalis the body changes shape. ✓

Method. Count the pictures.

1. Count the pictures. The pictures show a baby, a young cat and an adult cat.
   three pictures
2. Write the number. So there are three stages.
   3
3. Write the answer.
   3

Check. Each picture is one stage. ✓

Method. Read the features of insects.

1. Read the features. Insects have six legs.
   six legs
2. Write the number. So the answer is six.
   6
3. Write the answer.
   6

Check. Spiders have eight legs, so they are not insects. ✓

Method. Think about how mammals begin life.

1. Think about mammals. Most mammals give birth to live young.
   live young
2. Decide. So the statement is false.
   false
3. Write the answer.
   false

Check. Hatching from an egg is how birds and many insects begin life. ✓

Method. Read the features of birds.

1. Read the features. Birds have feathers and a beak.
   feathers
2. Name the covering. So the covering is feathers.
   feathers
3. Write the answer.
   feathers

Check. A chick grows its feathers before it can fly. ✓

Method. Count the bars that reach 4.

1. Read the bars. The amphibian, insect and bird bars each reach 4.
   three bars
2. Count them. So three groups show 4 stages.
   3
3. Write the answer.
   3

Check. Only the mammal bar is shorter. ✓

Method. Read the amphibian bar.

1. Read the bar. The amphibian bar reaches 2.
   2
2. Write the number. So there were two observations of amphibians.
   2
3. Write the answer.
   2

Check. The bars show the class list. ✓

Method. Read the description in section 2.4.

1. Read the description. The change of shape of an insect is called metamorphosis.
   change of shape
2. Name it. So the word is metamorphosis.
   metamorphosis
3. Write the answer.
   metamorphosis

Check. A butterfly goes through metamorphosis in its chrysalis. ✓

Method. Think about the young stage that lives in water.

1. Read the description. The young frog that breathes with gills and lives in water is called a tadpole.
   gills
2. Name it. The word is tadpole.
   tadpole
3. Write the answer.
   tadpole

Check. Tadpoles change into frogs. ✓

Method. Read the features of insects.

1. Read the features. Insects have six legs.
   six legs
2. Write the number. So the answer is six.
   6
3. Write the answer.
   6

Check. Spiders are not insects, because they have eight legs. ✓

Method. Think about how each group begins life.

1. Think about the groups. Most mammals give birth to live young.
   give birth
2. Choose the group. So the group is mammals.
   mammals
3. Write the answer.
   mammals

Check. Birds and amphibians start life as eggs. ✓

Method. Think about the name for a young bird.

1. Think about the bird. A young bird that hatches from an egg is called a chick.
   hatches from an egg
2. Name it. The word is chick.
   chick
3. Write the answer.
   chick

Check. Chicks are fed by their parents. ✓

Method. Read the stages in order.

1. Read the stages. The stages are egg, caterpillar, chrysalis and adult butterfly.
   caterpillar, chrysalis
2. Name the stage. The stage between the caterpillar and the adult is the chrysalis.
   chrysalis
3. Write the answer.
   chrysalis

Check. In the chrysalis the caterpillar changes shape. ✓

Method. Think about where each young animal lives.

1. Think about the frog. A tadpole develops and lives in water.
   in water
2. Think about the butterfly. A caterpillar eats leaves, so it lives on leaves.
   on leaves
3. Write the answer.
   in water and on leaves

Check. Accept any answer that gives water for the frog and leaves for the butterfly. ✓

Method. Think about what a young mammal needs.

1. Think about the young. A young mammal grows by using its food.
   grows
2. Write the reason. Milk is the food that a young mammal needs.
   milk is food
3. Write the answer.
   Accept any sentence that says milk gives the young the food they need to grow.

Check. Young mammals depend on milk to grow. ✓

Method. Count the bars that reach 4.

1. Read the bars. The amphibian, insect and bird bars each reach 4.
   three bars
2. Count them. So three groups show 4 stages.
   3
3. Write the answer.
   3

Check. The mammal bar shows 3 stages. ✓

Method. Compare the two life cycles.

1. Compare the eggs. A frog lays eggs in water, as spawn. A blackbird lays eggs in a nest.
   water and nest
2. Compare the young. A tadpole has gills and a tail, but a chick is fed by its parents.
   gills and tail
3. Write two differences. Two correct differences answer the question.
   two differences
4. Write the answer.
   Accept any two correct differences, such as: frog eggs are laid in water and blackbird eggs are laid in a nest; a tadpole has gills and a tail, but a chick does not.

Check. Both life cycles have stages, but they start in different ways. ✓

Method. Read the two bars.

1. Read the bird bar. The bird bar reaches 4.
   4
2. Read the mammal bar. The mammal bar reaches 2, so birds were seen more often.
   2
3. Write the answer.
   yes. Birds 4, mammals 2.

Check. 4 is more than 2, so Mo is right. ✓