DO NOW November 30, 2012

1. What factors can be changed in an experiment? A) variables B) constants C) controls D) standards 2. How are a hypothesis and a theory similar? A) Neither a hypothesis nor a theory can be revised. B) Theories and hypotheses are produced by experts. C) They are attempts to explain natural phenomena. D) They are about equally true. 3. A(n) __________ is a prediction or explanation that can be tested by experimentation. A) theory B) hypothesis C) scientific law D) method 4. A collection of structures, cycles, and processes that relate to and interact with each other is a(n) __________. A) system B) machine C) model D) organism

Terminology Subatomic particle Atom Ground state Qualitative quantitative Concerning the kinds of matter present The smallest particle of an element A state in which all the electrons in an atom have the lowest possible energies. Concerning the amounts of matter present A particle smaller than an atom

1. Particles in a liquid are arranged such that all liquids have: Choose the answer that best completes the following statements. Worth 5pts each 1. Particles in a liquid are arranged such that all liquids have: A definite volume but not a definite shape. A definite shape but not a definite volume. A definite shape and a definite volume Neither a definite volume nor a definite shape.

2. Which set of properties best describes a solid? A definite volume but not a definite shape. A definite shape but not a definite volume. A definite shape and a definite volume Neither a definite volume nor a definite shape.

3. Which of the following is an example of a physical property? Phase of matter Reactivity Acidity Combustibility

4. A phase change is an example of a _________________________. Physical property Physical change Chemical property Chemical change

5. In which state (s) of matter can materials take the shape of their containers? Solid and liquid Solid and gas Liquid and gas Liquid only

6. Lightning is best classified as: Plasma Liquid Gas Solid

7. Which statement is not true? To change from a solid to a liquid requires energy Depending upon the temperature, water can exist in solid, liquid, or gas states. Solids and liquids have similar densities because particles of solids and liquids both touch In a solid the molecules have no motion, and no energy.

8. Particles with more energy move __________ than particles with less energy. slower and farther apart faster and farther apart slower and closer together faster and closer together.

9. Gases can be __________. boiled destroyed expanded and compressed expanded but not compressed   10. What causes surface tension? All answers accepted particles of a liquid pulling along the surface particles of gas pushing down on a liquid particles of a liquid pushing up on the surface particles of a liquid pushing on the sides of a container

11. Which best describes particles in a liquid? less freely moving than a solid more freely moving than a gas completely unmoving more freely moving than a solid   12. Which is not a physical state of matter? vacuum solid liquid gas

13. Matter takes up __________. space and temperature space and mass heat and temperature space and heat 14. Which state of matter has a definite volume but a variable shape? solid liquid gas vapor

15. Which of these phase changes does NOT involve changing a liquid into a gas? sublimation vaporization evaporation boiling   16. Condensation is the phase change in which a substance changes from a solid to a gas a solid to a liquid a liquid to a solid a liquid to a gas a gas to a liquid

17. Which state of matter has a definite volume and a definite shape? solid liquid gas plasma   18. Which is the 5th state of matter? Bose Einstein Condensate Plasma

19. The phase change that releases energy into its surroundings endothermic vaporization exothermic evaporation 20. The kinetic theory of matter says: energy an object has due to its motion the state of matter in which a material has neither a definite shape or volume all particles of matter are in constant motion forces of attraction occur in particles.

Bonus Questions: worth 5 points each  1. Name the five states of matter. -Solid, liquid, gas, plasma, Bose Einstein Condensate 2. Illustrate the behavior of particles for a solid, liquid, and gas 3. Write one of the following equations: the combined gas law, boyle’s law, or charles’ law Charles’s Law= V1 = V2 T1 T2 Boyle’s Law=P1V1=P2V2 Combined gas law= P1V1=P2V2 T1 T2

Laboratory Activity Scientific Method Lab Using Bubble Gum Learning goals Students will be able to use the scientific method to solve problems and collect data-based observations. In doing the investigation students will know how to use SI units and differentiate qualitative and quantitative data.