8th Grade Science
Name:_____________________________
Review Sheet for Test 1: Scientific Method and Metric System
Scientific Method
1. What is a hypothesis?
2. What are controls in an experiment?
3. What is an independent variable?
4. A change in the independent variable will create a change in the
_________________?
5. Identify each step identified below for the following problem.
I want to know which flower, daisy, tulip, or rose, grows best in
a warm climate.
a. Purpose
b. Hypothesis
c. Independent and Dependent variables
d. Control group
e. Experimental group/s
f. 3 Controls
Length
1. Given a line, can you determine its length in cm?
2. What place should you carry all of your answers to for cm and mm?
(ones, tenths, hundredths)?
3. What is the basic unit of length?
4. What instrument is used to measure length?
8th Grade Science
Volume
1. Given water in a graduated cylinder, can you read its volume?
2. What units are used to measure volume?
3. To what place should you carry all of your answers?
4. What is the basic unit of volume?
5. What instrument is used to measure volume?
6. Identify the two methods we used to find the volume of an object.
What determines the method you should use?
7. What is a meniscus?
Mass
1. Given an object, can you determine its mass?
2. What units are used to measure mass?
3. What place should you carry all of your answers to?
4. How would you find the mass of an object you can’t directly place on
the triple beam balance (like a liquid)?
5. What is the basic unit of mass?
6. What instrument is used to measure mass?
Density
1. Can you determine the density of regular and irregular objects?
2. What are the units of density for regular objects?
3. What are the units of density for irregular objects?
8th Grade Science
4. What is the density of an object with a mass of 29g and a volume of
4mL? Show your work.
5. Are you able to use density formulas to determine mass, volume, or
density given the other variables? Show your work.
i. What is the mass of a gold ring, density 19.3 g/cm3, that
has a volume of 3.4 cm3?
ii. What is the volume of a 45.7g piece of palladium if its
density is 12.0 g/mL?