Grade 3 Science Practice Test: Animal Groups and Survival
- Animal Groups and Survival
- 10 questions
- 13 minutes
Many animals live in groups, and small differences between animals of the same kind can decide which ones survive. Think about what each animal gains or gives up.
Tap an option to mark your answer. You can change your mind, or tap the same option again to leave the question blank. The correct answers and explanations appear when you finish the test.Tap an option to answer; tap it again to leave the question blank.
Your result
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Question 1
How does hunting in a pack help wolves?
Correct answer: C
One wolf alone usually cannot bring down a large animal such as an elk, but a pack working together can.
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Question 2
Small fish often swim close together in a large group called a school.
How does this help them survive?
Correct answer: C
A moving crowd of fish confuses a predator, so it is harder for it to pick out and catch a single fish.
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Question 3
In a honeybee hive, the queen lays eggs, worker bees gather food, and other bees guard the entrance.
Why is this helpful?
Correct answer: B
Each bee does a job the colony needs. By dividing the work, the hive gets food, protection and new bees.
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Question 4
In the freezing Antarctic winter, emperor penguins stand pressed close together in a big huddle.
What is the main reason?
Correct answer: A
Standing close together lowers how much heat each penguin loses to the icy wind.
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Question 5
While a group of meerkats looks for food, one meerkat stands on a high spot and watches. It gives a loud call if it sees an eagle.
How does the group benefit?
Correct answer: B
The guard lets the rest of the group eat safely. When it calls, they can run to their burrows.
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Question 6
Two rabbits of the same kind live in a field. One can run faster than the other.
When a fox chases them, which rabbit is more likely to survive?
Correct answer: D
Being faster is a trait that helps the rabbit escape. Small differences like this can decide which animals survive.
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Question 7
Some moths of one kind are light gray, and some are dark gray. They rest on dark tree bark during the day, where birds hunt them.
Which moths are more likely to survive?
Correct answer: B
Dark moths blend in with dark bark, so birds see them less often. Light moths stand out and get eaten more.
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Question 8
A leaf is too heavy for one ant to carry. Several ants carry it back to the nest together.
What does this show about living in a group?
Correct answer: A
Together, the ants can move a load that is too heavy for any single ant.
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Question 9
Which is a disadvantage of living in a group?
Correct answer: D
In a group, the food has to be divided among many animals. The other three choices are advantages of group life.
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Question 10
During a dry season, the oldest female in an elephant herd leads the others to a water hole she remembers from years before.
How does this help the herd?
Correct answer: A
An older leader knows where water can be found, and the whole herd survives by following her.
Questions you leave blank are not counted as wrong.
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