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Understanding Matter, Changes, and Experiments in Science

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This study session focuses on fundamental concepts in science, including distinguishing between matter and non-matter, understanding physical and chemical changes, and recognizing different states of matter. Participants will explore examples such as elements, compounds, and mixtures, and learn about experimental variables—independent, dependent, and control. Additionally, the session covers key concepts such as density, solubility, and the processes of freezing and condensation.

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Understanding Matter, Changes, and Experiments in Science

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  1. Unit 2 Study Session

  2. Which of these is NOT matter? • Kite • Air • Heat • Apple

  3. Which is an example of a physical change? • Cutting paper • Dying your hair • Roasting hot dogs • Fireworks

  4. Which is an example of a chemical change? • Spreading butter • Throwing a ball • Slicing bread • Digesting Food

  5. Which best describes a tossed salad? • Element • Mixture • Compound • Solution

  6. Which of the following is an element? • Carbon dioxide (CO2) • Sodium chloride (NaCl) • Air (C, N, O) • Gold (Au)

  7. Dissolving sugar in water is… • Solubility • Physical Change • Chemical Change • Both (1) and (2)

  8. States of matter change by adding or removing… • Atoms • Matter • Energy • Particles

  9. A compound is… • Chemically combined • Physically combined • A pure substance • Found on the periodic table

  10. You slice a loaf of bread. What happens to the mass? • Mass goes up • Mass goes down • Mass stays the same • Mass changes in an hour

  11. A ping pong ball floats. What term describes floating and sinking? • Density • Gravity • Weight • Volume

  12. Gravitational force is… • Matter • Volume • Weight • Mass

  13. Amount of space taken up is…. • Matter • Volume • Weight • Mass

  14. Water on the outside of a glass of ice water… • Freezing • Vaporization • Condensation • Sublimation

  15. A substance losing energy and becoming organized and compact… • Freezing • Vaporization • Condensation • Sublimation

  16. How many variables are in an experiment? • None • One • Two • Three

  17. Which variable is the test (manipulated variable) • Independent • Dependent • Control • Scientific

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