Across
- 1. change - do not change the composition of a substance, only the physical properties
- 4. table - a quick reference for associating the name and symbol of an element.
- 7. System: the body system that circulates blood through the body, consisting of the heart, blood vessels, and blood
- 9. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
- 11. properties - be recognized only when substances react or do not react chemically with one another, that is, when they undergo a change in composition.
- 12. Mixture - is not uniform throughout, the component substances can be visibly distinguished
- 14. - a solid substance formed when two solutions are chemically combined.
- 16. Adenosine triphosphate; a compound that releases energy during the process of cellular respiration
- 17. - elements with similar properties found on the right side of the “staircase” on the periodic table
- 18. Metabolic Rate: the rate at which the body uses energy while at rest to keep vital functions going, such as breathing and keeping warm
- 19. - pure substances that are composed of two or more types of elements that are chemically combined
- 25. the chemical processes that occur within a living organism in order to maintain life
- 26. - new substances formed in a chemical reaction and that they are located on the right side of the arrow in a chemical equation.
- 27. - substances broken apart or combined in a chemical reaction and that they are located on the left side of the arrow in a chemical equation
- 29. a solid inorganic substance of natural occurrence
- 30. pyramid: a nutritional diagram in the shape of a pyramid
- 31. a simple carbohydrate (sugar) that is an important energy source in living organisms and is a component of many carbohydrates
Down
- 2. a nutrient that provides energy, typically made of sugars or starches
- 3. respiration: The chemical process that generates most of the energy in the cell, supplying molecules needed to make the metabolic reactions
- 5. - a subatomic particle with no charge (neutral) found in the nucleus of the atom.
- 6. a nutrient that is especially for the growth and repair of body tissue; building blocks
- 8. properties - can be observed and measured without changing the kind of matter being studied.
- 10. (fat): The body uses fat as a fuel source, and fat is the major storage form of energy in the body.
- 13. - a negatively charged subatomic particle found outside of the nucleus of the atom
- 15. - elements with similar properties that create a “staircase” on the periodic table
- 20. System: a group of organs working together to convert food into energy and basic nutrients to feed the entire body
- 21. - elements with similar properties found on the left side of the “staircase” on the periodic table
- 22. change - result in the formation of one or more new substances with new chemical and physical properties
- 23. - a positive subatomic particle found in the nucleus of an atom.
- 24. Mixture - is uniform throughout, the substances are evenly mixed and cannot be visibly distinguished
- 28. a unit used in measuring the amount of energy food provides when eaten and digested: