Across
- 2. Factors Non-living factors that affect the ecosystem; light, space, temperature, shelter, water, soil, composition
- 5. When a natural environment is contaminated with harmful substances
- 8. An organism that consumes both animals and plants
- 10. Variable in a scientific investigation, the factor that changes as a result of manipulation of one or more independent variables; can be measured
- 13. Electromagnetic waves that are very high energy and are used in medical and astronomical applications
- 14. Anything that has volume and mass
- 16. All space and the matter space contains
- 17. The spinning of Earth on its axis that causes day and night to occur
- 19. A natural movement of air sometimes with considerable force from an area of high density and pressure to an area of low density and pressure
- 20. An instrument that collects light or other electromagnetic radiation and concentrates it for better observation
Down
- 1. Cool, rigid, outermost layer of Earth that is divided into enormous pieces called tectonic plates
- 3. Weather changes due to varied amounts of sunlight (both intensity and number of daylight hours received.) Caused by the tilt of Earth during revolution
- 4. The number of different species of plants and animals in an area
- 6. Variable in a scientific investigation, the factor that is deliberately manipulated
- 7. A push or pull that can change the motion of an object
- 9. Interacting populations of organisms with biotic and abiotic factors
- 11. The columns on a periodic table that arranges the elements by the number of electrons that are in the outside shell
- 12. Reaction The process by which one or more substances change to produce one or more different substances
- 15. Half of the terrestrial globe or celestial sphere
- 18. Moon Phase of the Moon when it is between the Sun and Earth