Across
- 4. an organism that consumes, or eats, a plant or animal for energy.
- 7. an ecosystem in which many organisms cannot meet their needs.
- 9. When two or more organisms try to use the same limited resource.
- 12. an animal that only eats plants.
- 14. an animal that eats both plants and animals
- 16. The ability to do work. The Sun is the primary source of energy in an ecosystem
- 17. a green cell found in plants that absorb light to make glucose during photosynthesis.
- 19. All our surroundings. This includes the air, land, water, plants and animals.
- 20. A scientist who studies the relationship between organisms and their environments.
- 21. an organism that breaks down dead plants or animals and returns nutrients to the soil.
- 23. A community of organisms that interact with each other and their environment.
- 25. a living thing
- 26. a process that scientists use to explore observations and answer questions.
Down
- 1. An ecosystem in which many organisms can meet their needs.
- 2. the process plants use to make glucose using sunlight, air and water.
- 3. A diagram showing the direct path of energy from producers to consumers
- 5. A diagram showing interconnecting food chains that illustrate the flow of energy through an ecosystem.
- 6. A group of organisms that have a big effect on the balance of an ecosystem.
- 8. The study of how living and nonliving things are connected to each other in their natural environment.
- 10. a plant that creates energy through photosynthesis
- 11. a type of sugar, the main source of plant food for growth.
- 13. Nonliving components of an ecosystem, such as water, sunlight, and oxygen.
- 15. an animal that eats other animals
- 18. is an element, material or substance that has mass and takes up space. In an ecosystem, biotic and abiotic matter are recycled over and over.
- 22. a gas found in the atmosphere that plants absorb to create glucose during photosynthesis
- 24. Living components of an ecosystem, such as plants and animals.
