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INT SCI - Unit 01a Test Practice and Review

Total questions: 45

Worksheet time: 2hrs 3mins

Name
Class
Date
1.

If my dog goes for a walk before breakfast,

and my dog eats breakfast before playing with toys,


then my dog goes for a walk before playing with toys.

a)

TRUE

b)

FALSE

2.

If the red pencil is longer than the blue pencil,

and the blue pencil is longer than the yellow pencil,


then the red pencil is the shortest.

a)

TRUE

b)

FALSE

3.
An explanation of things, events, or natural phenomena using observations and knowledge gained from multiple investigations or large amounts of data
a)
Theory
b)
Scientific law
c)
Hypothesis
d)
Experiment
4.
A statement about what happens in nature that seems to be true all the time
a)
Experiment
b)
Scientific Law
c)
Theory
d)
Standard
5.
The statement "The sunset was beautiful" is a fact.
a)
true
b)
false
6.
The International System of Units makes it easier for scientists from different countries to communicate.
a)
true
b)
false
7.
Which statement is true?
a)
If the person measuring is careful, it is possible to get an exact measurement.
b)
if the correct scale is used, it is possible to get an exact measurement.
c)
Good measurements have no uncertainty.
d)
All measurements have some uncertainty.
8.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
9.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
10.

When applying Occam's Razor to the following incident, which explanation is most likely to be true?


A dog owner comes home to the trash can tipped over and trash is scattered on the floor.

a)

someone broke in and sorted through the trash can

b)

the cat from next door snuck in and tipped over the trash and framed the dog

c)

the dog tipped the trash can over

d)

Time Traveler Doc Brown was looking for fuel for his Delorean

11.

After the discovery of a new plant, botanists look at how it fits in with the known family tree of plants. Eventually it is put into an existing family of plants, or a new family is added to the kingdom of plants.

a)

Theorizing

b)

Experimenting

c)

Classifying

d)

None of These

12.

The base unit for mass (without any prefix) is...

a)

kilogram

b)

liters

c)

grams

d)

meters

e)

℃

13.
240 cm = ___________ m
a)
2400
b)
24
c)
2.4
d)
0.24
14.
Which unit is the smallest?  
a)
km
b)
mm
c)
m
d)
cm 
15.

Select the largest unit.

a)

kilogram

b)

centigram

c)

decigram

d)

decagram

16.
Which unit is a a measure of volume?
a)
meters
b)
grams
c)
inches
d)
liters
17.
When measuring the mass of an elephant it is best to use:
a)
g
b)
nL
c)
ng
d)
kg
18.

4 L = ____ mL

a)

40

b)

400

c)

4,000

d)

40,000

e)

4,000,000

19.

Kim measures the length of her foot. Which measurement could be correct?

a)

19 centimeters

b)

19 millimeters

c)

19 meters

d)

19 kilometers

20.

What is this tool?

a)

beaker

b)

ruler

c)

flask

d)

pipette

e)

graduated cylinder

21.

What tool is this?

a)

pipette

b)

ruler

c)

digital balance

d)

graduated cylinder

e)

caliper

22.

A measuring device that reads and displays the weight of an object

a)

triple beam scale

b)

digital thermometer

c)

weigher

d)

digital balance

e)

graduated cylinder

23.

Forms of protective eyewear usually enclose or protect the area surrounding the eye in order to prevent particulates, water, or chemicals from striking the eyes.

a)

glasses

b)

googles

c)

sunglasses

d)

science googles

24.
Read this graduated cylinder to the nearest tenth of a milliliter
a)
21.5 
b)
22.5
c)
20
d)
21
25.

What is the best answer for length of the straw?

a)

0 cm 

b)

8.0 cm 

c)
7 cm 
d)
1 cm 
e)

8 m

26.

A student puts water in a graduated cylinder and then adds two small rocks. What is the volume of the rocks?

a)

3mL

b)

2mL

c)

5mL

d)

12mL

27.

What is an independent variable?

a)

The variable that is measured as a result of an experiment.

b)

The variable the experimenter changes on purpose.

c)

The variable(s) that do not change during the experiment.

d)

All of these are true

28.

What is a dependent variable?

a)

The variable that the experimenter changes on purpose.

b)

The variable that is measured as the result of the experiment.

c)

The variable(s) that stay the same.

d)

The group that is being tested.

29.

An experimenter wants to know if holding puppies for increasing amounts of time will affect the heart rate of a study subject.

Which of the following would be the control group for this study?

a)

People's heart rate when holding puppies

b)

People who love puppies

c)

People's heart rate when not exposed to puppies

d)

People who hate puppies

30.

An experimenter wants to know if holding puppies for increasing amounts of time will affect the heart rate of a study subject.

The independent variable for this experiment would be..

a)

Heart rate of the study subject

b)

Amount of puppies used

c)

Amount of time holding puppies

d)

Amount of research subjects

31.

Which is most helpful to a scientist?

a)

Bootleg Data

b)

Sketchy Data

c)

Valid Data

d)

Biased Data

e)

Compromised Data

32.
Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
33.
If I study for my scientific method quiz, then I will have a better test score. What is the dependent variable?
a)
Scientific Method
b)
Studying
c)
Independent variable
d)
Test score
34.

Rene grew bacteria from the mouth on special plates in the laboratory. She placed drops of different types of mouthwash on bacteria on each plate is an example of what step?

a)

question

b)

experiment

c)

form a hypothesis

d)

analysis/conclusion

35.

A custodian notices some dirty tables and wants to know which cleaner is the best to use. He tests three different cleaners and looks at how well they clean compared to tap water. What is the control group?

a)

type of cleaner

b)

tap water

36.
People buy more drinks on ____ than any other day.
a)
Monday
b)
Tuesday
c)
Thursday
d)
Friday
37.

A drink company wants to see if a new sports drink makes people gain unwanted weight. The scientist they hire starts giving a hundred mice samples of the sugary sports drink to see if they gain weight. He checks them daily for a month, recording their weight. What huge part of a proper experiment is he missing?

(Please keep your feelings about the ethics of using mice in an experiment to the side, this is a made up example so no mice are being hurt in this case. PS I don't like testing on animals either.)

a)

The IV

b)

The DV

c)

The Experimental Group

d)

The Control Group

e)

Data

38.

Two people are alone in a locked cabin in the arctic circle. Each has one candy bar. Jose is saving his for his birthday. He wakes up on his birthday and finds that his candy bar is gone. Gretchen says she only ate her candy bar. Remember, they are in alone in a locked cabin. Both candy bars were in the kitchen yesterday. Which answer below makes the most sense?

a)

You could use logical deduction to figure out that Gretchen probably ate Jose's candy bar.

b)

You could use bias to figure out that Gretchen probably ate Jose's candy bar.

c)

You could use classification to figure out that Gretchen probably ate Jose's candy bar.

d)

You could use philosophy to figure out that Gretchen probably ate Jose's candy bar.

e)

You could use a control group to figure out that Gretchen probably ate Jose's candy bar.

39.

Mark, Mike, and Linda are aguin about which answer "follows" the rules about how many decimal places to go out when measuring this pencil. They were asked to measure the pencil accurately and precisely in cm.

a)

Mike says they should round it off to the nearest whole number so it is 2 cm long.

b)

Mark says they should take it out one more decimal place and says the best answer is 2.5 cm.

c)

Linda says that the rule is to "guess one more place than there are lines for...", so because it isn't exactly on the line the best answer would be 2.52 cm

d)

A strange child appears from under the table where he was hiding and says the rule is the more decimal places the better.... He says the best answer is 2.593782390 cm

e)

All of the other answers are improper and incorrect.

40.

Sitting outside on the grass on a perfect day. What is the temperature in metric ℃?

a)

74

b)

81

c)

25

d)

0

e)

40

41.

Water boils at 212 ℉. What is that in ℃?

a)

212

b)

200

c)

25

d)

100

e)

68.5

42.

Water freezes at 32 ℉. What is that in ℃?

a)

100

b)

25

c)

30

d)

0

e)

2.9

43.

A cube of gold is 1cm wide x 1cm tall x 1cm long?

When placed on a digital balance, it reads 19.32g

What is the volume of the gold cube?

a)

19.32g

b)

3 cm3

c)

1.0 g

d)

3.0 g

e)

1.0 cm3

44.

A cube of gold is 1cm wide x 1cm tall x 1cm long?

When placed on a digital balance, it reads 19.32g

What is the mass of the gold cube?

a)

19.32 g

b)

3 cm3

c)

1.0 g

d)

3.0 g

e)

19.32 cm3

45.

A cube of gold is 1cm wide x 1cm tall x 1cm long?

When placed on a digital balance, it reads 19.32g

What is the density of the gold cube?

a)

19.32 g

b)

3 cm3

c)

1.0 g/cm3

d)

3.0 g

e)

19.32 g/cm3

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