# Chapter 2 Science Grade 8

Quiz by Rose Helderman, updated more than 1 year ago
 Created by Rose Helderman over 5 years ago
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### Description

science chapter 2

## Resource summary

### Question 1

Question
Scientists measure length, mass, volume, density, temperature and time using SI untis.
• True
• False

### Question 2

Question
Length is
• the distance from one point to another
• the amount of matter in an object
• measure of the force of gravity acting on an object
• the amount of space taken up by an object
• measure of how much mass is contained in a given volume

### Question 3

Question
The International System of Units (SI) is based off the metric system.
• True
• False

### Question 4

Question
The measure of the amount of matter in an object is
• mass
• volume
• gravity
• density
• weight

### Question 5

Question
The force of gravity acting on an object is the
• mass
• volume
• gravity
• density
• weight

### Question 6

Question
The amount of space taken up by an object or substance is
• mass
• volume
• gravity
• density
• weight

### Question 7

Question
SI stands for
• International Scientific Units
• International System of Units
• International System of Science
• International House of Science

### Question 8

Question
Which of the following is a standard system based on 10
• miles
• yards
• metric
• volume

### Question 9

Question
The basic SI unit for measuring weight is a measure of force called
• newton
• pound
• ton
• kilogram

### Question 10

Question
Weight changes when
• gravity changes
• with different scales
• the type of measurement system you use
• it never changes

### Question 11

Question
The curve of the liquid in which you use to take a measurement
• SI
• metric system
• meniscus

### Question 12

Question
How would you measure the volume of an irregular shaped object
• with a ruler
• displacement of water
• on a scale
• by carefully studying it

### Question 13

Question
The basic SI unit for measuring volume is the
• cubic meter
• newton
• kilogram
• yard

### Question 14

Question
The measure of how much mass is contained in a given volume is
• mass
• volume
• gravity
• density
• weight

### Question 15

Question
The official SI unit for temperature is the
• nweton
• kelvin
• second
• kilogram

### Question 16

Question
When collecting data, scientists use math skills that include all of the following except
• precision
• significant figures
• accuracy
• percent error
• estimation

### Question 17

Question
The approximation of a number based on reasonable assumptions
• estimates
• accuracy
• precision
• significant figures

### Question 18

Question
Estimates are useful when
• it is easy to count each individual or object
• when a person isn't good at counting
• when it is impossible to count every individual or object
• when you don't have enough time to count every individual object

### Question 19

Question
Measurements are never completely precise.
• True
• False

### Question 20

Question
The numerical average of a set of data
• mean
• mode
• median
• range
• percent error

### Question 21

Question
The middle number in an ordered set of data
• mean
• mode
• median
• range
• percent error

### Question 22

Question
The number that appears most often in a list of numbers
• mean
• mode
• median
• range
• percent error

### Question 23

Question
The difference between the greatest value in the set and the least value
• mean
• mode
• median
• range
• percent error

### Question 24

Question
Humans or equipment error can produce data that does not fit with the data set. What is this data called?
• reasonable data
• scientific data
• anomalous data
• specific data

### Question 25

Question
The percent difference between the known value of a substance and its measured value is called
• mode
• median
• range
• weight
• percent error

### Question 26

Question
A picture of your data is called
• accuracy
• estimation
• graph
• model

### Question 27

Question
The following are the ages of people in the room. 36 36 37 37 39 40 41 What is the mode?
• 36
• 37
• 39, 40 and 41
• 36 and 37

### Question 28

Question
Scientists use graphs to identify trends, make predictions, and recognize anomalous, or inconsistent data.
• True
• False

### Question 29

Question
Look at the graph on the page mom has. What type of graph is this?
• linear graph
• non linear graph
• pie graph
• line graph

### Question 30

Question
3 gerbils weigh 20 grams. How many millograms would the three gerbils weigh?
• 200 mg
• 2,000 mg
• 20,000 mg
• 200,000 mg

### Question 31

Question
A graph that shows data points in a straight line is called a
• linear graph
• non linear graph

### Question 32

Question
A graph in which the points do not fall in a straight line are called
• linear graph
• non linear graph

### Question 33

Question
A point that is not part of the trend is an anomalous data point called an outlier.
• True
• False

### Question 34

Question
an approximation of a number based on reasonable assumptions
• estimate
• significant figures
• precision
• accuracy
• percent error

### Question 35

Question
refers to how close a group of measurements are to each other
• estimate
• significant figures
• precision
• accuracy
• percent error

### Question 36

Question
communicate how precise measurements are and includes all digits measured exactly, plus one estimated digit
• estimate
• significant figures
• precision
• accuracy
• percent error

### Question 37

Question
refers to how close the measurement is to the true or accepted value
• estimate
• significant figures
• precision
• accuracy
• percent error

### Question 38

Question
Data that does not fit with the data set is called
• scientific data
• reasonable data
• anomalous data
• specific data

### Question 39

Question
Cheryl took 7 math tests in one marking period. What is the range of her test scores? 89, 73, 84, 91, 87, 77, 94
• 91
• 5
• 85
• 21

### Question 40

Question
Scientists use plans to test their ideas about things they cannot observe directly
• True
• False

### Question 41

Question
Scientists build __________ to represent a process. They test whether the input and output from the model match the input and output of the system in the natural world.
• map
• graph
• model
• significant figures

### Question 42

Question
Anomalous data shows on a graph as a(n)
• nonlinear graph
• trend
• outlier
• linear graph

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