WorksheetsUnit 1 Test Review
Total questions: 14
Worksheet time: 14mins
Name
Class
Date
1.
Scientific investigations include many different steps. During a scientific investigation, which step occurs after a scientist collects data?
a)
Draw Conclusions
b)
Form the hypothesis
c)
Plan the experiment
d)
Follow the procedure
2.
Use the graph to answer the following question. How many players on the team have a batting average between .300 - .399? (DOK 1) SC.7.N.1.1
a)
1
b)
5
c)
7
d)
9
3.
A good experiment has several characteristics. Which characteristic is part of a good scientific experiment?
a)
Results can be reproduced
b)
Results are not reviewed by peers
c)
Results are based on a small sample size
d)
Results based on undisclosed procedure
4.
Which of the following is a way to gather empirical evidence?
a)
Conduct research on the internet
b)
Gather opinions from scientists
c)
Make first-person observations during an experiment
d)
Read reports from other experiments that have some of the same variables.
5.
What conclusion can you draw from the experiment?
a)
There is not difference
b)
Mug A keeps the water heated longer
c)
Mug B keeps the water heated longer
d)
The experiment was timed for too long
6.
What time will the water temperature reach 16 degrees?
a)
4 seconds
b)
5 seconds
c)
6 seconds
d)
7 seconds
7.
A student wanted to find out if listening to different music will have an affect on a person’s pulse. She believed that the pulse rate would change with different types of music. She carried out the experiment on seven people, using seven different selections of music. She took each participant’s pulse before listening, as well as after listening, and recorded the results. Her conclusion matched her hypothesis. What is missing/wrong about this experiment?
a)
Nothing is missing
b)
She did not ask a question
c)
She should re-do the experiment
d)
She should have used one person with the seven different types of music.
8.
A student wants to buy a new skateboard. He wants to find out if the size of the wheels affects how far he can coast on the skateboard. What is the independent variable in this experiment?
a)
size of the wheels
b)
how far he can coast
c)
skateboard material
d)
location he is skating
9.
Mary Beth bought 15 ghost shrimp. She put five in a small fish bowl, five in a larger tank, and five in an artificial pond in her backyard. What are at least two controlled variables Mary Beth should have to be able to tell whether the size of the tank affects the size of the shrimp after 6 months?
a)
Size of tank, initial age
b)
Growth of shrimp, water temperature
c)
Water temperature, initial age
d)
Growth of shrimp, size of tank
10.
A science class wants to find out if the shape of objects, made of the same metal, affect how fast these objects sink in water. The students use three objects that have the same mass but different shapes. The students drop each object into a large water tank and measure how long it takes for each object to reach the bottom of the tank. What is the dependent variable in this experiment?
a)
The shape
b)
The type of metal
c)
The mass
d)
How fast the objects sink
11.
Scientists once believed that living things come from nonliving things. For example, people used to believe that maggots came from the juices of decaying meat. In 1668, Francesco Redi disproved this theory. What does this example indicate about scientific explanation?
a)
Observations without Observations without experiments are not scientifically accurate.
b)
Scientific explanations cannot be changed.
c)
Scientific explanations were not accurate in 1668.
d)
Scientific explanations can be changed in the face of new evidence.
12.
Tycho Brahe (1546 – 1601) was a Danish astronomer who observed the planets and stars without the benefit of a telescope. He kept records of planetary motion. His assistant, Johannes Kepler, used these records to formulate his three laws, which accurately predicted the motions of the planets. What does this suggest is the most important aspect of scientific study?
a)
Control over the variables of interest.
b)
Access to modern equipment and research methods.
c)
Ability to make observations and accurately record data.
d)
Sufficient time to conduct a study and the amount of data recorded.
13.
The atom model has changed over time. Why did this scientific knowledge change over time?
a)
Thomson, Rutherford, and current scientists have different opinions of atoms.
b)
New empirical evidence leads scientists to modify existing models.
c)
Older models were based on opinions, whereas current models are based on facts.
d)
Thomson and Rutherford’s ideas were completely incorrect.
14.
Which is an example of repetition?
a)
1
b)
2
c)
3
d)
4
100 %
