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SOL Remediation Scientific Investigation

Total questions: 25

Worksheet time: 32mins

Name
Class
Date
1.

A(n) ___________________________ is what you can learn about an object by using your 5 senses.

a)

Qualitative Observation

b)

Quantitative Observation

c)

Inference

d)

Hypothesis

2.

I want to know if low strength bleach, medium strength bleach, or maximum strength bleach will get Heinz ketchup stains out of white T-shirts the best. What is the independent variable in this experiment?

a)

the type of stain

b)

the strength of the bleach

c)

the color of shirt

d)

the brand of ketchup

3.

How many independent variables should you have in an experiment?

a)

two

b)

as many as possible

c)

four

d)

one

4.

The trees outside of the school have large, green leaves growing on them. Is this a Qualitative Observation, Quantitative Observation, or an Inference

a)

Qualitative Observation

b)

Quantitative Observation

c)

Inference

5.

What is an independent variable?

a)

What a scientist changes in an experiment to test their hypothesis

b)

What scientist measure to see if it responded to a change

c)

What happens when you do an experiment

d)

What you keep the same throughout all experimental groups

6.

What is an dependent variable?

a)

What a scientist changes in an experiment to test their hypothesis

b)

What scientists measure to see if it responded to a change

c)

What happens when you do an experiment

d)

What you keep the same throughout all experimental groups

7.

At what temperature did bread mold the slowest?

a)

20

b)

40

c)

60

d)

80

8.
A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH 7.Which is the best conclusion for this experiment?
a)
Acid has no effect on the health of this type of plant.
b)
B. High acidity is helpful to this type of plant.
c)
C. Low acidity is harmful to this type of plant.
d)
High acidity is harmful to this type of plant.
9.
The graph below shows atmospheric carbon dioxide levels since the year 1880.Which of the following conclusions can be drawn from this graph
a)
 Atmospheric carbon dioxide levels are responsible for global temperature change.
b)
 Atmospheric carbon dioxide levels have been rising at about the same rate for the past century.
c)
Atmospheric carbon dioxide levels have remained the same over the past century.
d)
 Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.
10.
A research group has discovered that damselflies, a type of dragonfly, are being infected by a particular type of aquatic protozoan. Both young and adult damselflies are not directly infected by the protozoan but contract the infection from the prey they eat. The graph shows the percentage of adult damselflies infected by protozoans during the summer and early fal
a)
Infection in embanked ponds increased during the sampling period.
b)
Protozoans were more common in creek-fed ponds than embanked ponds.
c)
Protozoans reproduce more quickly in embanked ponds than creek-fed ponds.
d)
Infection in creed-fed ponds remained constant throughout the sampling period.
11.
Carmen conducted an experiment to determine if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music.  Which component is missing from Carmen’s experiment?
a)
a question
b)
a hypothesis
c)
a control group
d)
a description of the experiment
12.
An osmosis investigation was conducted using chicken eggs to represent cells with semipermeable membranes. The mass of each egg was measured to determine how much water diffused into or out of the eggs. The eggs were first soaked in vinegar to dissolve the shell. Each egg was then placed in one of three different solutions for 24 hours. The table below shows the results of the investigation. Based on this experiment, which of the following should be inferred about cells with semipermeable membranes?
a)
Substances other than water may also cross the cell membrane.
b)
Substances other than water may block pores in the cell membrane.
c)
 Water enters the cell when placed in environments of high water concentration.
d)
Water leaves the cell when placed in environments with a low concentration of solutes
13.
In order to be accepted, a scientific theory must be
a)
 widely tested and supported by extensive data
b)
 based on the results of a single experiment
c)
 controversial and cause debate
d)
 in line with all previous historical ideas
14.
In an appropriately designed experiment, a scientist is able to test the effect of
a)
 a single variable
b)
 multiple variables
c)
 the hypothesis
d)
 scientific observations
15.
An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of two groups of people at rest were measured. Group A was then given caffeinated soda and group B was given caffeine-free soda. One hour after drinking the soda, the pulse rates were measured. The participants in the experiment were all the same age, and they were all given the same amount of soda. The dependent variable in this experiment is the
a)
type of soda given to each group
b)
amount of soda given to each group
c)
 pulse rate of each group
d)
age of participants in each group
16.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
17.
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. What variables should be kept constant/controlled? 
a)
type of plant, flower pot,  soil, and amount of sunlight
b)
water, apple juice, milk
c)
only the amount of sunlight
d)
type of plant only
18.

Mrs. Lewis sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.

a)

height of the ramp

b)

distance traveled by the ball

c)

mass of the ball

d)

weight of the ball

19.
Observations that deal with a number or amount are called
a)
manipulated observations
b)
operational observations
c)
qualitative observations
d)
quantitative observations
20.
Which of the following is a valid reason why a scientist might reject a scientific theory?
a)
It covers too broad a topic
b)
New evidence contradicts it
c)
It is too old
d)
Some people disagree with it
21.
In order to make an inference, you must have:
a)
Make observations with all senses
b)
Made 3 other observations
c)
Background knowledge
d)
A hypothesis in mind first
22.

Florence set up an experiment as shown here. What could her hypothesis be?

a)

Plants need light to grow

b)

Different types of plants grow better in different types of light

c)

The distance a light is away from a plant will effect its growth rate

d)

The intensity of the light that reaches a plant will affect how well the plant grows

23.

The DEPENDENT VARIABLE in this experiment is

a)

the trees

b)

the temperature

c)

the asphalt

d)

the time to record the data

24.

A student performed a test to prove that reaction time in boys is faster than reaction time in girls.

What is the INDEPENDENT VARIABLE?

a)

the gender of the students

b)

the reaction time

c)

the number of trials

d)

the number of students tested

25.

This experiment validates the idea that reaction time in boys is faster than in girls. What could the experimenter do to improve the validity even more?

a)

use a different stopwatch for each trial

b)

test only boys, but do more trials

c)

test many more boys AND girls

d)

only do one test for each person

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