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Scientific Method, Lab Skills, Measurement, Lab Safety

Total questions: 55

Worksheet time: 1hrs 10mins

Name
Class
Date
1.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
2.
Which is NOT a step in the scientific method?
a)
Make observation
b)
Form a theory
c)
Collect data
d)
Form a hypothesis
3.
A testable explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
4.
This variable in an experiment is the one being changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
5.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
6.
What is a hypothesis?
a)
A hypothesis is the right answer to an experiment.
b)
A hypothesis is the wrong answer to an experiment.
c)
A hypothesis is an educated guess.
d)
I don't know.
7.
The summary at the end of an experiment that explains the results. 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
8.
The name of the information that you get from your experiment (you organize it into charts and graphs).
a)
observations
conclusion
b)
data
c)
variables
d)
hypothesis
9.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
10.
Dependent variable means
a)
the scientist controls what to test
b)
educated guess
c)
ask a question
d)
what is being measured
11.
If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?
a)
increase the amount of iron in your blood
b)
spinach you eat
12.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
True
b)
How fast you get to school
c)
Riding a bike or walking
d)
False
13.
Will a construction paper air plane fly faster than an airplane made from notebook paper? Choose the best hypothesis.
a)
If I make a paper airplane from notebook paper, then it will fly faster than construction paper.
b)
Yes.
c)
No.
d)
I think the construction paper air plane will fly faster.
14.
Which side of a penny will hold more drops of water? Choose the best hypothesis.
a)
If I use the heads side of a penny, then it will hold more drops of water than tails.
b)
Heads
c)
Tails
d)
Tails will hold more drops of water.
15.
If I study for my scientific method test, then I will have a better test score. What is the dependent variable?
a)
Scientific Method
b)
Studying
c)
Independent variable
d)
Test score
16.
If I listen to Mr. Castro's instructions, then I will have less accidents in the lab. What is the independent variable?
a)
Yes
b)
Maybe
c)
Listening or not listening to instructions
d)
Likelihood of having an accident in lab 
17.
If I read this question carefully, then I will answer it correctly. What is the independent variable?
a)
I hope so
b)
Yes
c)
Reading or not reading carefully
d)
Likelihood of a correct answer
18.
You can have more than one independent variable in a controlled experiment.
a)
True
b)
False
19.

A student performed an experiment that tested how many days it takes different types of grass seed to grow to a height of two inches. Four types of grass seed were tested, and the student recorded the number of days for each type to grow. Use this information to answer the next question.


What should be held constant in this experiment?

a)

amount of sunlight, amount of water, and type of soil

b)

amount of sunlight

c)

amount of water and type of soil

d)

amount of water

20.

A student is studying the effect of sunlight on plants. The student developed this hypothesis: Plants need light to make food and to grow properly. To conduct a controlled experiment, which method should she use?

a)

Choose two identical plants; put one in the dark and one near sunlight; use the same amount of water; water both regularly

b)

Choose a healthy plant; put it in a dark place; use clean water; water the plant regularly.

c)

Choose two identical plants; put each in the dark for 12 hours and then light for 12 hours; use the same amount of water; water both regularly.

d)

Choose three identical plants; put one in the dark, one near sunlight, and one in the shade, water only the plant in light.

21.
Things that stay the same throughout the whole experiment are called
a)
controls
b)
dependent variables
c)
independent variables
d)
constants
22.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 
a)
experimental group
b)
control group
c)
data
d)
variables
23.

Experiment: Sendel wants to see if taking the backroads to work is faster than taking the highway during rush hour.


In Sendel's driving experiment, what is the control group?

a)

Highway

b)

Backroads

c)

Time she drives to work

d)

Rush hour

24.

Experiment: Sendel wants to see if taking the backroads to work is faster than taking the highway during rush hour.


In Sendel's driving experiment, what is the experimental group?

a)

Highway

b)

Backroads

c)

Time she drives to work

d)

Rush hour

25.
What is measured with a graduated cylinder?
a)

time

b)

distance

c)

weight

d)

liquid volume

26.
The water often curves down in a graduated cylinder. What is the scientific term for that curve?
a)
polarity
b)
water curve
c)
hypothesis
d)
meniscus
27.
What is the SCALE of this graduated cylinder?
a)
0.2
b)

1

c)

2

d)
5
28.
Where do we read the level of liquid?
a)
The highest point the liquid touches.
b)
The bottom of the meniscus.
c)
Half way between, we make an educated guess and round it.
d)
Somewhere about there.
29.
What is the correct value?
a)
5 ml
b)
15 ml
c)
20 ml
d)
25 ml
30.
What is the volume of the water?
a)
24 mL
b)
21.5 mL
c)
20.5 mL
d)
22 mL
31.
What is the formula for finding volume?
a)
l + w + h
b)
l x w x h
c)
l x h
32.
Define the meaning of volume
a)
The amount of space of a substance
b)
The amount of space in a container
c)
The amount of space the liquid takes in a container
33.
What measures the amount of matter in an object?
a)
Distance
b)
Mass
c)
Time
d)
Volume
34.

What tool is used to measure mass?

a)

Graduated cylinder

b)

Meter stick

c)

Triple beam balance

d)

Digital Scale

35.
What is mass?
a)
the distance between two points
b)
the amount of matter (stuff) in an object
c)
the amount of space an object takes up
d)
the distance between three points
36.

What is the mass?

a)

50.2g

b)

151g

c)

150.2g

37.

What is the mass?

a)

.9g

b)

.9kg

c)

19g

38.

I can use a ______ to measur the length of my pencil

a)

clock

b)

ruler

c)

weighing scale

d)

magnifying glass

39.

How many centimiters is the green rectangle?

a)

3 cm

b)

4 cm

c)

5 cm

d)

6 cm

40.
What is the length of the straw?
a)
8 cm 
b)
0 cm 
c)
7 cm 
d)
1 cm 
41.
Which property of matter is determined by dividing its mass by its volume?
a)
elasticity
b)
buoyancy
c)
density
d)
viscosity
42.
Which box has a higher density?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
43.
A piece of copper has a mass of 89g and a volume of 10 cm3.  What would be the density of the copper?
a)
0.89 g/cm3
b)
89 g/cm3
c)
8.9 g/cm3
d)
890 g/cm3
44.

A gummy bear placed in normal tap water would

a)

shrink

b)

swell

c)

remain the same size

45.

In the gummy bear lab, the general density of the bear before compared to after was

a)

the same

b)

completely different

c)

un-measureable

46.

What was the real purpose of doing the gummy bear lab?

a)

to have fun

b)

to collect data for Black Forest Gummy company

c)

to learn about density of matter

d)

to learn about density and practice our lab skills

47.

The real purpose of the bubbology lab was

a)

to clean the tables

b)

to practice lab and controlled experiment skills

c)

to practice lab skills

d)

to collect data on bubble size for Dawn and Sunjoy soap companies

48.

What was the real purpose of the Rainbow Lab

a)

to practice lab skills

b)

to practice lab skills, group work, and measurement

c)

to learn about the colors of the rainbow

d)

to have a fun first lab in 7th grade

49.

What most directly affects the precision of your measurements?

a)

The number of times you measure an object

b)

The size of the object you are measuring

c)

How quickly you take your measurements

d)

How carefully you measure and the tools you use

50.
Which of the following is an observation of the picture?
a)
The person is wearing a T-shirt
b)
It is a sunny day
c)
The person is going to a birthday party
d)
The gift is a DVD player
51.
What is an inference? 
a)
Just a guess.
b)
A statement based off of your observations. 
c)
The same as an observation. 
d)
Examples of something. 
52.
Which statement is an inference about this picture?
a)
The van is tan.
b)
The  van ran into KFC. 
c)
The driver was hungry. 
d)
An ambulance may be on the way. 
53.
What is an observation for this picture?
a)
The man is scared
b)
The man is going to get eaten
c)
There is a man in a kayak
d)
The man is paddling fast
54.
She is holding an umbrella
a)
observation
b)
inference
55.
It is raining outside
a)
observation
b)
inference

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