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Science Diagnostic Recap

Total questions: 40

Worksheet time: 40mins

Name
Class
Date
1.

Cara read an article on why repetition and replication are so important, but she did not understand the difference between them. Which of the following best explains the two terms?

a)

a. Repetition is when a scientist repeats an experiment; replication is when a scientist conducts an experiment on genetic material.

b)

b. Repetition is when a scientist does the same experiment a number of times; replication is when other scientists reproduce a scientist’s experiment.

c)

c. Repetition is when a scientist publishes in more than one scientific periodical; replication is when another scientist reproduces another scientist’s results.

d)

d. Repetition is when a scientist commits an error in an experiment the first time and must repeat it; replication is when a scientist repeats an experiment to make sure it is valid.

2.
At one point in time, many people thought disease was caused by fate or by incorrect behavior. Following the invention of the microscope, bacteria were discovered. After this, a new theory of what causes disease arose that was known as the germ theory.  Why was the original theory modified? 
a)
It quickly became obvious that germs cause disease.
b)
The person who invented the microscope became ill.
c)
New evidence prompted revision to the original ideas.
d)
The proponents of the germ theory had political power.
3.
Unprotected exposure to the sun’s rays is a factor in the development of skin cancer. Which   of the following is an example of empirical evidence that supports this hypothesis?
a)
a model of a skin cell showing where DNA is in the cell
b)
a skin cancer survivor’s recollection that he had a bad sunburn as a child
c)
data demonstrating a relationship between amount of sun exposure and incidences of skin cancer
d)
an advertisement for a sun block product that claims it protects skin for ultraviolet rays
4.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variable 
a)
Type of fertilizer
b)
Size of sunflower
c)
type of sun flower
5.
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
6.

What moon phase is occurring in position A?

a)

New moon

b)

Half moon

c)

Waxing Gibbous

d)

Full moon

7.
_______________is the method of determining the absolute ages of rocks.
a)
radioactive dating
b)
carbon-14 dating
8.
What provides the force that causes magma to erupt to the surface?
a)
the silica in the magma
b)
dissolved gases trapped in the magma
c)
gravity in the lithosphere
d)
the density of the magma
9.

The greenhouse effect is about

a)

warming the atmosphere because of increased CO2 levels

b)

warming the atmosphere because of decreased CO2 levels

c)

cooing the atmosphere because of increased CO2 levels

d)

cooling the atmosphere because of decreased CO2 levels

10.
 Which of the following activities contributes the most to carbon emissions globally?
a)
Deforestation
b)
Agriculture
c)
Burning fossil fuels
d)
Respiration
11.

How does heat move?

a)

from a warmer to a cooler object

b)

from a cooler to a warmer object

c)

toward a hot object

d)

away from a cold object

12.

When you touch hot sand, heat is transferred by _________ to your skin.

a)

conduction

b)

convection

c)

radiation

13.
The sun shines down on this family as the play on the beach.
a)
conduction
b)
convection
c)
radiation
14.

What is a "boiling point"?

a)

the temperature at which boiling occurs.

b)

the temperature at which melting occurs.

c)

the temperature at which solidification occurs.

15.

What does "melting point" mean?

a)

the temperature at which a liquid turns into a liquid.

b)

the temperature at which a gas turns into a liquid.

c)

the temperature at which a solid turns into a liquid

16.

In what kind of state are the atoms in the picture?

a)

solid

b)

liquid

c)

gas

17.
A combination of two or more substances that cannot easily be separated--
a)
mixture
b)
solution
c)
solute
d)
solvent
18.
A fruit salad is a 
a)
solution
b)
mixture
19.

What is a mixture?

a)

The combination of two or more substances not chemically combined.

b)

The combination of three or more substances.

c)

A liquid.

d)

A gas.

20.

Cooking an egg

a)

Chemical

b)

Physical

21.

No new substance created

a)

Chemical

b)

Physical

22.

New substance created

a)

Chemical

b)

Physical

23.

What type of energy does a sound wave have?

a)

Mechanical

b)

Radiant

c)

Electrical

d)

Sound

24.

True or False: Sound waves are faster than light.

a)

False

b)

True

25.

The speed of sound depends on these two things:

a)

The type of medium and the temperature of the medium

b)

Speed of the medium and temperature of the medium

c)

Temperature of the medium and sound of the medium

d)

None of the above

26.

An uncovered pot of soup is simmering on Mr. Wright's stove, and there are water droplets on the wall behind it. What sequence can you infer has occurred?

a)

evaporation, then condensation

b)

freezing, then thawing

c)

condensation, then vaporization

d)

Mr. Wright is a mess

27.

Two bar magnets are held close together. They are released and allowed to move freely. The bar magnets quickly come together. Which best explains why this happens?

a)

The poles facing one another are both south poles

b)

The poles facing one another are both north poles

c)

The poles facing one another are opposite poles

d)

One magnet was bigger than the other

28.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
29.

Deb walked to the ice cream shop. Sat and ate her ice cream and then went for a run.


Which graph matches this motion?

a)
b)
c)
d)
30.

1. (T/F) Most protists are unicellular, but a few are multicellular.

a)

True

b)

False

31.

3. Which one of these is not considered a type of Protist?

a)

Animal-like

b)

Plant-like

c)

Fungus-like

d)

Bacteria-like

32.

An exact copy of a cell/organism is produced...

a)

Mitosis

b)

Meiosis

33.

Variation in the cells/organisms produced...

a)

Mitosis

b)

Meiosis

34.

Some bacteria reproduce asexually, so they have...

a)

offspring identical to the parents.

b)

offspring unlike the parents.

35.

Brown Bears reproduce sexually, so all the baby bears are...

a)

different.

b)

the same.

36.

What is natural selection?

a)

process in which helpful traits become more common over time

b)

a trait that helps an organism survive better

37.

Which cell parts are not present in animal cells?

a)

cell membrane & cytoplasm

b)

nucleus & chloroplasts

c)

cell wall & chloroplasts

d)

ribosomes & mitochondria

38.

Which organelle is the location of DNA (genetic material)?

a)

mitochondria

b)

ribosomes

c)

nucleus

d)

Endoplasmic Reticulum

39.
What is found in both plant and animal cells but is much larger in plant cells?
a)
Nucleus
b)
Mitochondrion
c)
Chloroplast
d)
Vacuole
40.

Which statement was NOT included in cell theory?

a)

All living things are composed of cells.

b)

Living cells come only from other living cells.

c)

Each cell contains a cell membrane, cytoplasm, nucleus, mitochondria, and endoplasmic reticulum.

d)

Cells are the smallest structure of living things that can perform the functions necessary for life.

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