FIRST SIX WEEKS TEST REVIEW

Multiple Choice

1.If a fire erupts, immediately

  1. Notify the teacher
  2. Run for the fire extinguisher
  3. Throw water on the fire
  4. Open the windows

2. When using a razor blade or scalpel, always cut material

  1. away from you
  2. toward you
  3. in your hand
  4. perpendicular

3. Which or the following should NOT be worn during a lab activity?

  1. loose clothing
  2. dangling jewelry
  3. sandals
  4. all of the above

4. Which of the following is NOT part of the scientific method?

a. communicate results

b. make a graph

c. form a hypothesis

d. ask a testable question

5. Which of the following are uses for models in science?

a. as a tool for understanding the natural world

b. to use something familiar to help understand something that is not familiar

c. to explain the past or predict future events

d. all of the above

6. Which of the following is true when drawing conclusions?

a. the results might support the hypothesis

b. the results might not support the hypothesis

c. if the hypothesis is not supported, the scientist may try to find another explanation

d. all of the above

7. A hypothesis:

a. is not based upon observations

b. must be supported by your results

c. a possible explanation or answer to a question

d. best when it is untestable

Name each piece of lab equipment:

8. used for precisely cutting and inspecting preserved specimensDissecting Tools

9. Mostly used to grow bacteria Petri dish

10.Used to examine items under the microscope (name both pieces)Slide and Cover Slip

11. Used to measure the mass of an objectTriple Beam Balance

12. Used to measure the temperature of a gas, liquid or solid Thermometer

13. An electrically heated plate used for warming samples Hotplate

14. A hypothesis should always be written in an __if____ - _____then______format.

Label each observation Qualitative (QL) or Quantitative (QN):

15. The local weather data was kept for 90 days QN

16. Her feet are bigger than mine QL

17. The sign outside Ms. Lee’s room says B203 QL

18. The sugar maple leaves had turned 4 colors; red, orange, yellow and brown QN

19. The classroom is seventy two degrees FahrenheitQN

Identify the variables in each of the following problems

Does the temperature of water affect how quickly food coloring spreads through it?

  1. Identify the Independent VariableWater Temperature
  2. Identify the Dependent VariableTime for food to dissolve
  3. Identify the Constant Variables (must have at least 4)amount of water, container, location of experiment, same color, brand of food coloring, etc.

Will a rubber band or string hold more weight without breaking?

  1. Identify the Independent Variablerubber band vs. string
  2. Identify the dependent variableamount of weight before breaking
  3. Identify the Constant Variables (must have at least 3)length of material, age of material, type of weight used, etc.

Write an inference for each observation(There are many acceptable answers here)

  1. The teacher asked Bob to stay after class He was absent yesterday and has make up work
  2. We did a test review on Thursday We have a test on Friday
  3. My baby brother is crying He fell and scraped his knee
  4. My dad bought my mom flowers It is her birthday

What are the three types of models?

31. Physical

32.Concept/idea

33. Computer

31. What type of model is our Eye Model?Physical

32. What type is a weather forecast on the news? Computer

33. What type is a mathematical equation? Concept/idea

34. Can you write with a pen in science? No, only pencil

35. True/ False A conceptual model can be a system of ideas.