WorksheetsYear Nine Triple Test Revision
Total questions: 50
Worksheet time: 22mins
Name
Class
Date
1.
In an experiment, the one variable that is changed by the scientist is called the ______.
a)
independent variable
b)
dependent variable
c)
random variable
d)
controlled variable
2.
In an experiment, the factor that we observe and/or measure is called the ____.
a)
independent variable
b)
dependent variable
c)
random variable
d)
controlled variable
3.
What type of data is shown here?
a)
qualitative
b)
quantitative
4.
What type of data is shown here?
a)
qualitative
b)
quantitative
5.
A testable, possible explanation for a scientific question is called a(n) _____.
a)
theory
b)
random guess
c)
law
d)
hypothesis
6.
Observations that are made when you use your senses to gather information.
a)
manipulated
b)
quantitative
c)
qualitative
d)
operational
7.
Observations that are made with instruments such as rulers, balances, graduated cylinders, thermometers, timers, etc. and are measurable.
a)
manipulated
b)
quantitative
c)
qualitative
d)
operational
8.
An organized way to collect and record scientific observations is with a(n) _____.
a)
data table
b)
inference
c)
model
d)
definition
9.
A scientist studies how many days it takes people to get sick when eating different candies. What is the independent variable?
a)
eating
b)
days until sick
c)
the scientist
d)
candies
10.
A scientist studies how many days it takes people to get sick when eating different candies. What is the dependent variable?
a)
eating
b)
days until sick
c)
the scientist
d)
candies
11.
A scientist studies how many days it takes people to get sick when eating different candies. What is not a controlled variable?
a)
age of people
b)
candy type
c)
amount of candy
d)
time of eating
12.
A living thing, such as a plant, that can make its own food
a)
Producer
b)
Consumer
c)
Herbivore
d)
Carnivore
13.
A living thing that can't make its own food and must eat other living things
a)
Carnivore
b)
Consumer
c)
Herbivore
d)
Producer
14.
An animal that eats only plants or producers
a)
Carnivore
b)
Omnivore
c)
Herbivore
d)
Consumer
15.
An animal that eats only other animals
a)
Carnivore
b)
Omnivore
c)
Consumer
d)
Producer
16.
This type of cell needs a cell wall and chloroplasts
a)
Plant cell
b)
Animal Cell
c)
Bacteria
17.
The powerhouse of the cell is the...It converts energy from food into energy the cell can use
a)
Mitochondrion
b)
Golgi body
c)
Nucleus
d)
Ribosomes
18.
Where are proteins made? These are small, grain-like or rod shaped organelles.
a)
Golgi body
b)
Mitoichondrion
c)
Chromosomes
d)
Ribosomes
19.
Plants perform photosynthesis through this organelle. It captures energy from the sun and uses it to produce food for the cell.
a)
Chlorophyll
b)
Chloroplasts
c)
Mitochondria
d)
Golgi Apparatus
20.
Tiny cell structures that carry out specific functions within the cell.
a)
membranes
b)
nucleus
c)
organelles
d)
animalicules
21.
Which is NOT a form of precipitation?
a)
hail
b)
wind
c)
rain
d)
snow
22.
Some species of birds are endangered species. These birds made their homes in certain forests, however there are few of these forests left. What is the most likely reason these species have become endangered?
a)
spread of disease
b)
overhunting by humans
c)
loss of habitat
d)
increase in predators
23.
What causes objects, such as apples from an apple tree, to fall to the ground?
a)
friction
b)
air resistance
c)
balanced forces
d)
gravity
24.
Opposite magnetic poles will
a)
Attract
b)
Repel
c)
Create friction
d)
Cause the moon phases to change
25.
If an electric circuit is left open,
a)
Electricity will flow
b)
Electricity will not flow
c)
Electricity will flow and then stop
26.
Magnetic poles that are alike will...
a)
attract
b)
repel
c)
generate electricity
27.
During photosynthesis plants make sugar and....
a)
Carbon Dioxide
b)
Dirt
c)
Oxygen
d)
light
28.
A grizzly bear survives because he is well-adapted to his environment. When he reproduces he passes on those traits to his offspring. this process is called
a)
Natural Selection
b)
Selective Breeding
c)
Random mutations
d)
Variations in a species
29.
Genetic mutations are the direct cause of which of the following?
a)
Aliens
b)
Super heroes
c)
Variations
d)
8th grade behaviors
30.
The peppered moth's color camouflaged it on the light colored tree bark. It's color was an example of a/n
a)
Variation
b)
Dominant trait
c)
Recessive trait
d)
Adaptation
31.
Where are hereditary traits stored in all organisms?
a)
In the blood
b)
In the brain
c)
In the DNA
d)
In the heart
32.
Changes in inherited characteristics can cause a species to change into a new one. This change over time is called?
a)
Graduation
b)
Selective Breeding
c)
Revolution
d)
Evolution
33.
Long hair in a lab must always be
a)
Cut short
b)
Held away from the experiment with one hand.
c)
Clean and neatly groomed
d)
Kept completely out of the way.
34.
What should you do first if there is an accident and something breaks during a lab?
a)
Carefully clean up the mess.
b)
Warn your classmates that something broke.
c)
Tell the teacher
d)
Finish your experiments
35.
Which activity is allowed in a laboratory
a)
Eating
b)
Drinking
c)
Chewing gum
d)
None of the above
36.
Completely read all directions before beginning the experiment.
a)
True
b)
False
37.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
38.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
39.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
40.
The particles that are found in the nucleus of an atom are
a)
neutrons and electrons
b)
electrons only
c)
protons and neutrons
d)
protons and electrons
41.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
42.
What is defined as a push or pull?
a)
force
b)
motion
c)
vector
d)
speed
43.
This type of force resist motion between two surfaces that are pressed together
a)
contact
b)
gravity
c)
friction
44.
If the net force is equal to zero, the forces acting on the object are
a)
balanced
b)
unbalanced
45.
Balanced forces do not change the objects speed or
a)
direction
b)
distance
c)
time
d)
mass
46.
The unit of force is
a)
m/s
b)
m/s^2
c)
newton
d)
kg
47.
What type of respiration requires oxygen?
a)
Aerobic
b)
Anaerobic
48.
What are the products of anaerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
49.
Which type of respiration is most efficient?
a)
Aerobic
b)
Anaerobic
50.
A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough oxygen to make very much ATP the weightlifter begins to get fatigue in his muscles. Which of the following processes is most likely going on in the muscles of the weightlifter as he competes in his event
a)
As the cells run out of oxygen they switch to anaerobic respiration, which allows the cell to make small amounts of ATP in the absence of oxygen.
b)
As the cells run out of oxygen, they die off gradually and the weightlifter's muscles have fewer contracting muscle cells.
c)
The cells will never run out of oxygen if the weightlifter is breathing.
d)
As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen is not required to make ATP.
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