Across
- 3. the one thing a scientist manipulates or tests on purpose during an experiment
- 4. a monosaccharide sugar that is produced in photosynthesis and used during cellular respiration for energy production
- 6. a gas released by plants during photosynthesis; used during cellular respiration
- 7. the cumulative body acquired of observation or experimentation in which scientific explanation is based
- 13. mass is neither created nor destroyed in ordinary chemical and physical changes
- 16. ingredient in a chemical reaction
- 17. support proper function and growth
- 19. a chemical reaction during which plants convert radiant energy from the Sun to chemical energy; the reaction converts carbon dioxide and water into sugar (glucose) and oxygen
- 22. organisms that produce their own food. Also known as producers.
- 23. a representation or description designed to make a particular part/feature of the world easier to understand
- 26. carbon dioxide dissolving in the oceans
- 27. the structure in a cell where cellular respiration takes place
- 29. the structures within plant cells where photosynthesis takes place
- 30. the results that are measured/observed during an experiment
Down
- 1. continuous loops, moving between living organisms (producers, consumers, decomposers) and the nonliving environment (air, water, soil) through processes like photosynthesis, respiration, respiration and decomposition!
- 2. energy cannot be created or destroyed, only transformed from one form into another
- 5. the process of obtaining energy from the breaking of chemical bonds in nutrients; ALL cells do this
- 8. the burning of fossil fuels or other materials
- 9. anything that has mass and takes up space
- 10. what is made in a chemical reaction
- 11. air/gas above the surface of Earth)
- 12. the cycling of carbon throughout Earth's spheres
- 14. anything that absorbs more carbon from the atmosphere than it releases
- 15. usable energy in all living cells
- 18. organisms that obtain energy by eating other organisms. Also known as consumers.
- 20. the ability to do work or cause change.
- 21. the breakdown of plant and animal matter by decomposers to return nutrients to the soil
- 24. non-renewable resources that release carbon into the atmosphere when burned
- 25. a gas released during cellular respiration; used by plants during photosynthesis
- 26. main pigment found in the chloroplasts of plants
- 28. factors during an experiment that are controlled so that they don't affect the dependent variable