Study Guide for Chapter 1 Test
note: problems involving numbers will have different values on the test
1. (T/F) The scientific method gives scientists a way to organize their thinking about a problem or question.
2. (T/F) The independent variable is the variable that is changed in an experiment.
3. (T/F) The control and experimental groups are designed to be identical.
4. (T/F) Scientific investigations always follow a series of rigidly defined steps.
5. In a controlled experiment, the ______group is the group that receives some type of experimental treatment.
6. An educated guess, or ______, may be tested by experimentation.
7. The ______group receives no experimental treatment.
8. A loaf of bread weighs 1362 g. The weight in kilograms is
9. 375 mm equals ______m.
10. 1234 cL is equal to ______hL
11. Write in scientific notation: 486000
12. What is 78,900,000,000 expressed in scientific notation?
13. The speed of light is approximately 3 x 108 m/s. How would this be written in conventional notation?
14. What is the area of a room that is 4 x 102 cm long and 2 x 103 cm wide?
15. Write in expanded (conventional) notation: 2.3 x 10-3
16. 0.000 26 is ______in scientific notation
17. There are ______m, in 2000 mm?
18. There are ______L, in 0.05 ml?
19. 30 mg is the same mass as:
a. / 300 hectograms / c. / 0.0003 kgb. / 0.3 grams / d. / 0.03 g
20. 20 m is the same as:
a. / 0.02 km / c. / 200 cmb. / 2000 mm / d. / 0.002 mm
21. (3 x 104) x (2 x 105) = ______
22. Write in expanded (conventional) notation: 4.55 x 103 ______
23. Write in expanded (conventional) notation: 7.367 x 10-5 ______
24. The first step in the scientific method is usually ______
25. Scientists test a hypothesis by ______
26. A possible answer to a scientific problem is called a ______.
27. A ______description of a scientific law would use a mathematical equation.
28. The SI unit for measuring length is the ______
29. The English physician Ronald Ross wanted to find the cause of malaria. Based on his observations, Dr. Ross suggested that the Anopheles mosquito might spread malaria from person to person. This suggestion was a ______
30. A scientist noticed that the number of salamanders in ponds in the Rocky Mountains was declining. This was a(n) ______
31. A hypothesis that is not supported by the data that has been collected and analyzed is ______
32. A planned procedure to test a hypothesis is called a(n) ______
33. A hypothesis is a ______
34. Scientific hypotheses are most often tested by the process of ______
35. The variable that is measured in an experiment is the ______variable.
36. (5.5 X 107) x (4.2 x 104) =
37. What is the area of a room that is 4.56 m long and 5.668 m wide?
38. What is the volume of a cube that is 2.5 cm high, 2.65 cm wide, and 3.456 cm long.
39. (2.2 x 104) ÷ (7.1 x 105) =
40. Measurement is a form of ______observation
41. Write the correct prefix next to its symbol:
k- d- m-
h- c-
D- (deca or deka, I have seen this abbreviated dk- and da- also. I will not put this on the test because of this confusion and it’s similarity to the prefix deci.)
There will be a few questions from the safety symbol quiz. You should still have the chart in your notes.