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science

Total questions: 85

Worksheet time: 43mins

Name
Class
Date
1.

What is an experiment?

a)

A procedure carried out to support, refute, or validate a hypothesis.

b)

It provides insights into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated.

c)

a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

d)

perform a scientific procedure, especially in a laboratory, to determine something.

2.

What is chemistry?

a)

A branch of science that is the most important of all of the braches of science.

b)

the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

c)

A small atom.

d)

the complex emotional or psychological interaction between two people.

3.

A thing predicted; a forecast, is also called a (a)  

4.

If you want to know an unknown plant species found in the garden, who do you ask for help?

a)

Chemist

b)

Physicist

c)

Astronomer

d)

Botanist

5.

Is the study of marine organisms found, their behaviors and interactions with the environment.

a)

Hydroogy

b)

Water Science

c)

Marine Biology

d)

Ecology

6.

What is the biggest planet in our solar system?

a)

Venus

b)

The Earth

c)

Jupiter

d)

Mars

7.
cake batter
a)
heterogeneous mixture
b)
homogeneous mixture
8.
Goggles are worn in the lab...
a)
To avoid eye strain
b)
To improve your vision
c)
Only if you don't have personal glasses on
d)
Any time chemicals and glassware are used, and when told to by the teacher
9.
What group is Potassium located in?
a)
1
b)
2
c)
3
d)
16
10.
If there is a fire in the lab, immediately...
a)
Notify your teacher
b)
Run for the fire alarm
c)
Throw water on the fire
d)
Open the windows
11.

What is it?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

12.

It is a branch of Science that studies all living things

a)

Life Sciences

b)

Physical Science

c)

Earth Science

d)

Astronomy

13.
During a lab experiment, which should NOT be worn?
a)
Loose or bulky clothing
b)
Dangling jewelery
c)
Sandals
d)
None of these should be worn
14.
If a chemical splashes on your skin, wash the skin at once with...
a)
Soap
b)
Oil
c)
An acid
d)
Plenty of water
15.
what is a group on the periodic table?
a)
Broken Substance
b)
Rows
c)
columns
d)
The weeknd
16.

When last estimated, how many different species did Scientists estimate there are on Earth?

a)

1 million

b)

10 thousand

c)

8.7 million

d)

100 million

17.

Which of the following is the worlds largest living organism?

a)

Blue Whale

b)

Elephant

c)

Fungus - Armillaria ostoyae

d)

quaking aspen tree

18.

Which of these animals is an AMPHIBIAN?

a)

Dog

b)

Frog

c)

Cat

d)

Spider

19.

Which of these animals is a MAMMAL?

a)

Bird

b)

Mouse

c)

Shark

d)

Frog

20.

Which are types of vertebrates?

a)

Fish and jellyfish

b)

Mammals and insects

c)

Amphibians, birds, fish, mammals and reptiles

d)

Crustaceans

21.

What season is it in the Southern Hemisphere when it is Autumn in the Northern Hemisphere?

a)

Winter

b)

Summer

c)

Autumn

d)

Spring

22.

One rotation of Earth is equal to

a)

Day

b)

Month

c)

Year

23.

Where on Earth can you experience entire days of darkness?

a)

The equator

b)

The poles

c)

The tropic of Cancer

d)

The tropic of Capricorn

24.

Which section of Earth is composed primarily of liquid metal?

a)

Crust

b)

Mantle

c)

Inner core

d)

Outer core

25.

When a volcano no longer erupts, the lava inside cools and forms

a)

Sedimentary rock

b)

Igneous rock

c)

Metamorphic rock

d)

Ash

26.

A mountain range is MOST LIKELY formed due to

a)

erosion of the land around a mountain

b)

deposition from a nearby river that results in soil accumulated over time

c)

they have always existed, but due to their density, they are never changed

d)

tectonic plates shifting during an earthquake

27.

What is the most abundant gas in the atmosphere?

a)

Oxygen

b)

Nitrogen

c)

Carbon dioxide

d)

Ozone

28.

Approximately how much of available water on Earth is fresh water?

a)

1%

b)

11%

c)

53%

d)

97%

29.

A species survives better than another because it has better adaptations. This is an example of what?

a)

Replication

b)

Evolution

c)

Natural selection

d)

Selective breeding

30.

Who is Charles Darwin?

a)

First man to go to the moon in 1969

b)

First man to discover DNA and the human genome

c)

First man to discover adaptations to support his theory of evolution by natural selection

31.
Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.  
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
32.
Susan said, "If I fertilize my geranium plants, then they will blossom."
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
33.
Jonathan's data showed that household cockroaches moved away from raw cucumber slices.
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
34.
Rene grew bacteria from the mouth on special plates in the laboratory.  She placed drops of different mouthwashes on bacteria on each plate.
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
35.
Kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed.
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
36.
Jose saw bats catching insects after dark. He said, "How do bats find the insects in the dark?"
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
37.
Justin wondered, "Can dyes be taken out of plant leaves, flowers, and stems?"
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
38.
Alice soaked six different kinds of seeds in water for 24 hours.  Then she planted the seeds in soil at depth of 1 cm.  She used the same amount of water, light, and heat for each kind of seed.
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
39.
Bob read about growing plants in water.  He wanted to know, "How can plants grow without soil?"
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
40.
Kevin said, "If I grow five seedlings in red light, then the plants will grow faster than the five plants grown in white light."
Which step of the scientific method is this?
a)
Stating the problem
b)
Forming a hypothesis
c)
Conducting an experiment
d)
Drawing a  conclusion
41.

What is Newton's first Law of Motion?

a)

Every action has an equal opposite reaction

b)

Sandwich

c)

An object in motion stays in motion unless acted upon by an unbalanced force

d)

The force acting on an object is equal to the mass of an object times its Acceleration

42.

What is the atomic number of oxygen?

a)

5

b)

17

c)

Sandwich

d)

8

43.

What is the molecular structure of Table salt?

a)

Sandwich

b)

Molecular who?

c)

NaCI

d)

H2O

44.

Biology is the study of What?

a)

Sandwich

b)

Life

c)

The human brain

d)

Weather

45.

What Female Nobel prize winner Conducted research on radioactivity?

a)

Sandwich

b)

Marie curie

c)

Tierra Guinn

d)

Issac Newton

46.

Energy= ___ to the speed of light squared

a)

Gravity

b)

Sandwich

c)

Mass

d)

Lighting

47.

who was Dimitri Ivanovich Mendeleev?

a)

Periodic Table inventor

b)

Sandwich

c)

An Astronomer

d)

A singer

48.

What is formula of Force?

a)

Net force * Mass

b)

Mass / Acceleration

c)

Sandwich

d)

Mass / Velocity

49.

What was the first animal sent into Space?

a)

Laika the dog

b)

Alfred the Monkey

c)

Sandwich

d)

Urusula the fish

50.

How Long does it take for light to get from the sun to the Earth?

a)

150 Million Years

b)

8 minutes

c)

Sandwich

d)

10 seconds

51.
Water with high turbidity 
a)
is cloudy and hard to see through
b)
is clear
52.
A measure of the amount of dissolved salts in a given amount of liquid
a)
salinity
b)
bio-indicators
c)
wave
d)
tide
53.
Which of the following are indicators of healthy water systems?
a)
high nitrates, high pH, and low temperatures
b)
low temperatures, high dissolved oxygen, and neutral pH
54.
Under which condition are large numbers of fish in a lake likely to die?
a)
when the water's dissolved oxygen is low and temperature is high
b)
right after a storm with heavy rainfall
55.

Potable water is water that is ______________.

a)

polluted

b)

safe to drink

c)

biological

56.

The pH of healthy water is _______________.

a)

0-5

b)

6.5-8.5

c)

9-14

57.

Sewage is a source of which pollutant?

a)

nitrates

b)

phosphates

c)

algae

58.

Cleaning and industrial waste are sources of which pollutant?

a)

nitrates

b)

phosphates

c)

salinity

59.

High concentrations of salinity can cause vegetation to become unhealthy or die and can lead to a/an ___________ in biodiversity

a)

decrease

b)

increase

60.

_______________ water quality is indicated by a few number of bio-indicator organisms in one place

a)

Poor

b)

Good

61.

In 1972, the _______________ established the regulations on putting pollutants into the water

a)

Environmental Protection Agency (EPA)

b)

Clean Water Act

62.

The health of a water system is determined by the balance between what variables (choose all that apply)?

a)

physical

b)

physiological

c)

biological

d)

chemical

63.

Temperature, turbidity, and water movement are the _____________ factors used to determine water quality.

a)

physical

b)

chemical

c)

biological

64.

Dissolved oxygen, pH, nitrates, and salinity are _____________ factors used to determine water quality.

a)

physical

b)

chemical

c)

biological

65.

Fish, algae, insects, and plants are _________________ factors used to determine water quality.

a)

physical

b)

chemical

c)

biological

66.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
67.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
68.

A water molecule has the chemical formula H2O. This means that the water molecule is made up of

a)

Two hydrogen atoms and one oxygen atom

b)

Two oxygen atoms and one hydrogen atom

c)

Two hydrogen atoms and two oxygen atoms

d)

Two molecules of water

69.

Capillary Action is key for

a)

Water moving from roots to leaves in plants

b)

Air moving from mouth to lungs

c)

Ice floating on water

d)

Water moving to lower areas

70.
The tightness across the surface of water that enables paper clips to float is ____________.
a)
adhesion
b)
capillary action
c)
surface tension
d)
polarity
71.

Cohesive means ........

a)

the water molecules stick to each other

b)

the water molecules stick to other surfaces

c)

the water molecules are less dense

d)

the water molecules are far apart

72.

Adhesive means ........

a)

the water molecules stick to each other

b)

the water molecules stick to other surfaces

c)

the water molecules are less dense

d)

the water molecules are far apart

73.

Water striders can walk on water because of ____________.

a)

capillary action

b)

adhesion

c)

surface tension

d)

universal solvent

74.

Water can bounce on water because of surface tension.

a)

True

b)

False

75.

Why is water so good at dissolving so many substances?

a)

it is polar

b)

it is less dense as a solid

c)

cohesion

d)

adhesion

76.
Which property of water were you learning about at the "Magical Moving Pepper" station?
a)
surface tension
b)
universal solvent
c)
adhesion
d)
capillary action
77.
Water droplets take a spherical shape (as pictured) because of ____________
a)
adhesion
b)
cohesion
c)
capillary action
d)
solubility
78.
Most of the water on Earth is unusable by humans because it is _______________.
a)
contaminated (dirty)
b)
groundwater
c)
salt water
d)
stored in glaciers
79.
A molecule with electrically charged areas is called a _______________.
a)
magnet
b)
polar molecule
c)
solution
d)
electrical molecule
80.
Which represents the amount of potable water on Earth?
a)
.006%
b)
97%
c)
2.4%
d)
.003%
81.
Water moves through plant roots and in other substances with pores because of ___________.
a)
surface tension
b)
polarity
c)
capillary action
d)
gravity
82.
You were able to stretch the water with a toothpick because of _______________.
a)
adhesion
b)
cohesion
c)
capillary action
d)
specific heat
83.
As you added drops to the coins, each drop stuck to the other water because of ________________.
a)
adhesion
b)
cohesion
c)
capillary action
d)
specific heat
84.
Water's property of specific heat mostly affects which component of weather?
a)
precipitation
b)
temperature
c)
humidity
d)
air pressure
85.

Which end of the water molecule has a slightly negative charge?

a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive

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