4th Grade Science Plants and Animals Ecology Test | Name: |
Instructions: Choose the best answer for each question.
1. a series of living beings in which each serves as food for the next.
2. the imitation by an organism of its environment or of other organisms as a means of survival.
3. the act of putting or ordering things into groups of similar things.
4. poisons, waste, or other materials that cause harm to the environment.
5. materials that are found in nature and that can be used by people in many ways. Fresh water, soil, coal, and forests are all examples of __________.
6. to put used things through a process that allows them to be used again.
7. an animal that eats the flesh of other animals.
8. an animal that only feeds on plants.
9. a community of living things, together with their environment.
10. the total number of people living in a country, city, or other area.
11. a place or structure that gives protection against weather or danger.
12. the act or process of migrating.
13. an animal that hunts other animals for food.
14. the natural environment of an animal or plant.
15. a species of plant or animal that is in danger of becoming extinct.
16. a plant or organism that makes something useful.
17. a way of hiding something by covering or coloring it so that it looks like its surroundings. The military uses __________ to hide people, buildings, or vehicles from the enemy.
18. a person, animal or organism that uses products, goods or services.
19. something in food that helps people, animals, and plants live and grow.
20. the process by which a green plant uses sunlight to change water and carbon dioxide into food for itself.
21. an animal being hunted, caught, and eaten by another animal.
22. in biology, the placing of plants and animals in groups, based on structure and other criteria; taxonomy.
23. a gas that is part of air. It has no color or smell. Most living things need __________ to live.
Name: |
Instructions: Choose the best answer for each question.
1. the main part of a plant that supports the branches, leaves, and other parts.
2. the fine powder made by a flowering plants that helps the plant produce new plants.
3. the process by which a green plant uses sunlight to change water and carbon dioxide into food for itself.
4. of, like, formed by, or pertaining to trees.
5. lasting throughout the year or for many years.
6. poisons, waste, or other materials that cause harm to the environment.
7. to start or cause to start growth; sprout.
8. the small part of a plant with flowers that grows into a new plant.
9. the green matter in the leaves and stems of plants that is necessary to produce food for plants from sunlight.
10. a natural or chemical substance that you add to soil to make it better for growing plants.
11. the top layer of the earth's surface; dirt.
12. having a life cycle of more than two years as a plant.
13. the part of a plant that grows under the ground. __________ take in water and food, and they hold the plant in the soil.
14. a gas that is part of air. It has no color or smell. Most living things need __________ to live.
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