Grade 3 Biology Principles Worksheet
This worksheet introduces third-grade students to basic biology principles, including living vs. non-living things, plant and animal cells, and life cycles.
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Biology Principles for Grade 3
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Read each question carefully and answer to the best of your ability. Good luck!
1. Which of these is a characteristic of a living thing?
It can fly
It can grow
It is made of metal
It is very old
2. Which of these is a non-living thing?
A tree
A dog
A rock
A flower
3. All living things are made of tiny building blocks called .
4. Look at the image of the animal cell. It has a that controls what goes in and out.
5. Look at the image of the plant cell. It has a stiff that gives it shape and protection.
6. All animals start as a baby and grow into an adult.
True
False
7. Plants need sunlight, water, and air to grow.
True
False
8. Name two things that all living things need to survive.