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Worksheets

Science Brain Buster

Total questions: 95

Worksheet time: 1hrs 15mins

Name
Class
Date
1.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
2.
At which point is kinetic energy greatest? 
a)
W
b)
X
c)
Y
d)
Z
3.

When a pendulum swings, at which point is kinetic energy the greatest?

a)

1

b)

2

c)

3

d)

when watching TV

4.
Compressed springs and stretched rubber bands are examples.
a)
Potential Energy
b)
Stored Mechanical Energy
c)
Radiant Energy
d)
Kinetic Energy
5.

Choose the answer that has the most ELASTIC POTENTIAL energy.

a)

a rubber band pulled back all the way

b)

a rubber band pulled back part of the way

c)

a rubber band laying on a table

6.

Choose the answer that has the most GRAVITATIONAL POTENTIAL energy

a)

a bird flying 7 kmph 3 meters off the ground

b)

a bird flying 7 kmph 6 meters off the ground

c)

a bird flying 10 kmph 3 meters off the ground

7.

What two factors affect kinetic energy?

a)

mass

b)

speed

c)

height

d)

mass and speed

e)

mass and height

8.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

9.

A moving skateboard is an example of what kind of energy?

a)

Potential

b)

Kinetic

10.

What do all waves transfer?

a)

Matter

b)

Heat

c)

Electricity

d)

Energy

11.

Which of the following can waves transfer energy through?

a)

solid

b)

liquid

c)

gas

d)

empty space

e)

all of the above

12.

What are the two types of waves?

a)

longitudinal and transverse

b)

sound and light

13.

What is the number of complete waves passing a fixed point in a given amount of time?

a)

Amplitude

b)

Intensity

c)

Wavelength

d)

Frequency

14.

What is frequency measured in?

a)

Milliseconds

b)

Miles

c)

Hertz

d)

Kilograms

15.

Period of a wave refers to...

a)

how long it takes for the event to repeat.

b)

how strong a wave is.

c)

how long a wave is.

d)

how much energy a wave has.

16.

What is the distance between the calm sea and the highest wave called?

a)

Wave

b)

Frequency

c)

Amplitude

d)

Magnitude

17.

What does #2 represent?

a)

Period

b)

Frequency

c)

Wavelength

d)

Amplitude

18.

What do all waves transfer?

(a)  

19.

Which state of matter does this picture show?

a)

Solid

b)

Liquid

c)

Gas

20.

What state of matter does this picture show?

a)

Solid

b)

Liquid

c)

Gas

21.

Which state of matter does this picture show?

a)

Solid

b)

Liquid

c)

Gas

22.

What is the best definition of temperature?

a)

How hot or cold something is

b)

A measure of how fast the molecules are moving in a substance

c)

How hot or cold something feels to a person

23.

As temperature increases, what happens to particles?

a)

They speed up

b)

They slow down

24.

What is happening in this picture of water boiling?

a)

Molecules are speeding up

b)

Molecules are slowing down

25.

What is happening in this picture of this lake freezing?

a)

Molecules are speeding up

b)

Molecules are slowing down

26.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
27.
Which lab tool might you use to measure the volume of a liquid?
a)
electric scale
b)
bunsen burner
c)
test tube
d)
graduated cylinder
28.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
29.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
30.
Will an object with a density of 0.999 sink or float in water?
a)
sink
b)
float
31.
Which liquid has the highest density? 
a)
corn syrup
b)
lamp oil
c)
rubbing alcohol
d)
honey
32.
Density is...
a)
the amount of mass in an object
b)
the amount of space an object takes up
c)
the amount of mass in a given space
d)
the weight of an object
33.
Archimedes used density to discover if the crown of gold was real because
a)
Substances have their own unique densities
b)
Substances can change densities depending on their size
c)
Substances can change densities depending on their mass
d)
Substances can change densities depending on their volume
34.

This change is a

a)

chemical reaction

b)

physical change

c)

musical change

d)

all answers are correct

35.

When energy like heat and light are given off in a chemical reaction it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

ectomorphic

36.

When the matter in a chemical reaction gets colder it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

endomorphic

37.

When the matter in a chemical reaction gets warmer it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

endomorphic

38.

Signs of a chemical change could be:

a)

a change in energy (temperature, light, sound)

b)

a precipitate forms (a solid forms from 2 liquids)

c)

formation of gas (bubbles)

d)

shocking change in color

e)

all of these answers are signs of chemical change

39.
Balance this reaction: ____ Na3PO4 + ____ KOH ---> ____ NaOH + ____ K3PO4
a)
1,3,3,1
b)
1,3,2,1
c)
2,3,3,1
d)
1,1,3,1
40.
Balance this reaction: ____ NaF + ____ Br2 ---> ____ NaBr + ____ F2
a)
3,1,2,1
b)
1,2,3,4
c)
2,1,2,1
d)
1,2,1,2
41.
Which rock layer contains the newest fossils?
a)
F
b)
E
c)
B
d)
C
42.
According to the law of superposition, the oldest fossils are found 
a)
At the top of the rock layers
b)
Near the bottom of the rock layers
c)
In the middle of the rock layers
d)
Somewhat near the surface
43.
The best index fossils have which two traits?
a)
widespread geographically, long lifespan
b)
widespread geographically, short lifespan
c)
specific place, long lifespan
d)
specific place, short lifespan
44.
Index fossils help determine relative age through correlating rock layers.
a)
True
b)
False
45.
Which of the following organisms formed last on Earth?
a)
Jellyfish
b)
Shark
c)
Lizards
d)
Horses
46.
To be considered an index fossil, it had to have lived for a relatively short period of time.
a)
True
b)
False
47.

Earthquakes and volcanoes are most likely to happen along.....

a)

state lines

b)

horizons

c)

plate boundaries

48.

According to the graph, the most tornadoes happened in which month?

a)

January

b)

May

c)

September

d)

November

49.

According to the data, which of these states had the most tornadoes in 2020?

a)

Mississippi

b)

Florida

c)

North Carolina

d)

Kansas

50.

This type of flood is the most likely to occur suddenly, without warning, and cause the death of humans.

a)

wide range flood

b)

flash flood

c)

drought

51.

A massive wave caused by an underground earthquake.

a)

landslide

b)

tsunami

c)

hurricane

d)

flood

52.
What technologies currently exist to mitigate the effect of hurricanes?
a)
There is currently no technology 
b)
Build buildings in circles with surrounding walls 
c)
Build buildings out of renewable resources 
d)
Elevate buildings and cities; build flood walls 
53.
A seismograph can be used to measure and study what? 
a)
Volcanic eruptions
b)
Earthquakes
c)
Tsunamis
d)
All of the above
54.
Flooding, property damage, fatalities, and fires are all effects of what natural hazard? 
a)
Tsunamis and Earthquakes
b)
Volcanoes and Tornados
c)
Hurricanes and Earthquakes
d)
Tsunamis and Hurricanes
55.
A tiltmeter is a tool used to study what? 
a)
Tsunamis
b)
Earthquakes
c)
Volcanoes
d)
Hurricanes
56.
Scientists can predict exactly when a volcanic eruption will occur. 
a)
True
b)
False
57.
Reshaping new land, debris avalanches, destroyed forests, and death to many animals are all effects of what natural hazard? 
a)
Hurricane
b)
Earthquake
c)
Volcanic Eruption
d)
Tsunami
58.
Why is it beneficial to be able to predict when and where natural hazards will occur? 
a)
Communities can be notified to evacuate 
b)
So that we can stop them from happening again 
c)
So that scientists know where to go in order to study them 
d)
So that we can harness their power for renewable energy
59.

What is a trait?

a)

A physical characteristic passed down from your mom

b)

A behavioral characteristic passed down from your dad

c)

A physical or behavioral characteristic passed down from your parents

d)

A behavioral characteristic passed down by your mom

60.

What is an allele?

a)

A trait

b)

Different forms of a gene

c)

DNA

d)

Different types of parents

61.

What is a phenotype?

a)

Pair of alleles that determine a trait

b)

Observable physical trait

c)

Different forms of a gene

62.

A person who is homozygous for a trait can have a genotype of....

a)

AA, Aa

b)

Aa, aa

c)

AA, aa

d)

aa

63.

If a person is heterozygous for a trait, their genotype can be...

a)

Aa

b)

AA, aa

c)

AA, Aa

d)

AA

64.

If "B" represents brown hair, and "b" represents blond hair, what will the genotype be for a homozygous brown haired person?

a)

BB

b)

Bb

c)

bb

65.

If "B" is brown and "b" is blond, what is the phenotype of someone who's genotype is "bb"

a)

Brown Hair

b)

Blond Hair

c)

Red Hair

66.

If a person is heterozygous for brown hair, what is their genotype?

a)

BB

b)

Bb

c)

bb

67.

Heterozygous: Different, Homozygous:_____________

a)

The same

b)

Less Than

c)

Greater Than

d)

4 copies

68.

P= purple petals and p= white petals. What genotype(s) would result in purple petals?

a)

pp

b)

Pp, pp

c)

PP, Pp

d)

PP, pp

69.

How many copies of the recessive gene must there be for that phenotype to show up?

a)

1

b)

2

c)

3

d)

4

70.

What is the missing pairing?

a)

AA

b)

Aa

c)

aa

71.

Based on the missing letter, what is the parent's genotype?

a)

AA

b)

Aa

c)

aa

72.

Which of the following is the best definition for heredity?

a)

Heredity is the passing of particles from high concentration to low concentration.

b)

Heredity explains how DNA copies itself.

c)

Heredity is the passing of traits from parent to offspring.

d)

Heredity is the forming of clones.

73.

This scientist studied pea plants and was considered to be the "Father of Genetics".

a)

Reginald Punnett

b)

Gregor Mendel

c)

Charles Darwin

d)

Rosalind Franklin

74.

Y= yellow pod

y= green pod


What is the percentage of yellow pod when you cross a hybrid pod plant with a purebred green pod plant?

a)

25%

b)

50%

c)

75%

d)

100%

75.

Segments of DNA that code for specific traits are referred to as:

a)

RNA

b)

genes

c)

DNA splicing

d)

Chromosome

76.

The genotype is:

a)

the genetic makeup of an organism.

b)

the physical appearance of an organism.

c)

the deletion of a chromosome.

d)

the passing of traits from parent to offspring.

77.

Which of the following shows a genotype that would be considered homozygous? Choose all that apply.

a)

GG

b)

gg

c)

Gg

d)

Bb

e)

bb

78.

A human body cell contains:

a)

46 chromosomes

b)

23 chromosomes

c)

21 chromosomes

d)

40 chromosomes

79.

A human sex cell contains:

a)

46 chromosomes

b)

23 chromosomes

c)

46 pair chromosomes

d)

20 chromosomes

80.

Which of the following is true regarding genes and chromosomes?

a)

Genes and chromosomes do not have any connection.

b)

Chromosomes make up genes.

c)

Chromosomes are made up of genes which are located in the cytoplasm of the cell.

d)

Genes are sections of the DNA strand and are located on chromosomes.

81.

Many mutations...

a)

Occur randomly

b)

Occur because of bad eating habits

c)

Occur because of lack of exercise

82.

Mutations can be...

a)

Harmful

b)

Beneficial

c)

Neutral

d)

All of the Above

83.

Mutations are...

a)

Changes in the sequence of DNA

b)

Broken chromosomes

c)

Bad genes

84.

Mutations can be a result of...

a)

Environmental Exposure

b)

Lack of sleep

c)

Not enough exercise

85.

What is a type of Mutation?

a)

Deletions

b)

Insertions

c)

Base Substitutions

d)

All of the Above

86.

Punnet Squares can be used to...

a)

Predict the outcome of a trait in offspring

b)

Predict the time a baby will be born

c)

do nothing

87.

A Dominant trait is...

a)

A trait that shows in a person's phenotype when present.

b)

The capital letter in a punnet square

c)

All of the Above

88.

A recessive trait is...

a)

A trait that shows in a person's phenotype when a dominant trait is not present

b)

The lowercase letter in a punnet square

c)

All of the Above

89.

In the video, Tim says that genetic mutations are permanent changes to DNA or RNA. What does this mean?

a)

The changes are minor

b)

The changes can't be undone.

c)

The changes are major.

d)

The changes can be undone.

90.

Which of the following traits is encoded in your DNA? (Choose the best answer)

a)

Your personality

b)

Your likes and dislikes

c)

Your intelligence

d)

Your eye color

91.

Which of these is in the right order from largest to smallest?

a)

Organism - cell - gene - chromosome - nucleus

b)

gene - chromosome - cell - nucleus - organism

c)

Organism - cell - nucleus - chromosome - gene

d)

Organism - chromosome -cell - nucleus - gene

92.

Mutations are random.

a)

True

b)

False

93.

True or False: Genetic mutations always cause negative effects

a)

True

b)

False

94.

A genetic mutation that IMPROVES survival of an individual is called...

a)

Positive

b)

Negative

c)

Silent

d)

Special

95.

A genetic mutation that causes death or harm to an individual is called...

a)

Positive

b)

Negative

c)

Silent

d)

Nice

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