# 8th grade Chapter 1 Study Guide

```8th grade Chapter 1 Study Guide
prepare for your first test. If you cannot find the information in your notebook, than refer
1. Define Qualitative. Three different examples.
2. Define Quantitative. Three different examples.
3. Describe the different between an inference and an observation.
4. Know how to calculate Volume. Try this:
If a shoe box measures 6 cm high, 7 cm wide, and 20 cm long, what is its volume?
A box is 60cm, 45cm, 25 cm, what is its volume?
5. Know how to calculate Density. Try these:
A piece of metal is 32.4 g and has a volume of 24.9 cc, what is its density?
What is the density of a substance if its mass is 36.7g and its volume is 1.57cm3?
If a sample that has a volume of 5.25cm3 and a mass of 97.4g its density would be...
A piece of wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0
grams. What is the density of the wood?
6. Understand how to use the rules of significant figures. Try these:
8.4 x 104
20.003
0.003000
7000
7. Complete these calculations with the correct significant figure answer:
6x6
2.34 – 1.293
10.37 - 4
12.47/3.2 (8.41 X 2.873) + 4.77
8. What are the metric prefixes and their values?
9. Convert these problems:
500 mL = _______ L
56789 ml = _______ L
5.5 cm = ________ mm
500 g = _______ mg
25 m = ________ mm
234 kg = ________ mg
789 mL = ______ kL
1400 g = _______ kg
1600m = ________ km
258 g = _______ kg
658.3 cm = _______ m
625.365 mm = _______ m
10. Define independent variable, dependent variable, and control variable.
11. Devise an investigate question and then determine the independent variable, dependent
variable, and control variable.
12. Rewrite your lab safety rules.
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