Across
- 7. A method of separation using a magnet to attract magnetic materials.
- 9. Variable The variable that is changed or controlled by the scientist.
- 16. Using the senses to gather information about objects or events.
- 17. A testable prediction or educated guess based on prior knowledge.
- 18. The substance that is dissolved in a solution.
- 19. Test An experiment where only one variable is changed at a time.
- 20. Graph A chart that uses rectangular bars to show comparisons among categories.
- 22. Information collected during an experiment, often in the form of measurements or observations.
- 24. Pouring off a liquid to separate it from a solid or another liquid.
- 25. A process that separates substances based on differences in boiling points.
- 26. A measure of how easily a substance vaporizes; substances with high volatility evaporate quickly.
Down
- 1. A type of mixture where one substance dissolves in another (e.g., salt in water).
- 2. A summary of what was learned from an experiment.
- 3. A method used to separate solids from liquids using a filter.
- 4. A combination of two or more substances that are not chemically bonded.
- 5. Variable A variable that is kept constant to ensure a fair test.
- 6. A technique used to separate mixtures based on how substances move through a medium.
- 8. The substance that dissolves the solute (usually a liquid like water).
- 10. Variable The variable that is measured or observed in response to changes.
- 11. Point The temperature at which a substance changes from a liquid to a gas.
- 12. A technique to separate a dissolved solid from a liquid by heating.
- 13. A factor that can change in an experiment.
- 14. A step-by-step procedure used to carry out an experiment.
- 15. A mixture where particles are dispersed but not dissolved, and may settle over time.
- 21. Graph A graph that uses points connected by lines to show changes over time.
- 23. Chart A circular graph divided into slices to show proportions or percentages.