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Science Review 7R

Total questions: 65

Worksheet time: 58mins

Name
Class
Date
1.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
2.
If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?
a)
increase the amount of iron in your blood
b)
spinach you eat
3.
If I study for my scientific method test, then I will have a better test score. What is the dependent variable?
a)
Scientific Method
b)
Studying
c)
Independent variable
d)
Test score
4.
If I read this question carefully, then I will answer it correctly. What is the independent variable?
a)
I hope so
b)
Yes
c)
Reading or not reading carefully
d)
Likelihood of a correct answer
5.
What is the part of the experiment that is left alone or “natural", and is used to compare back to?
a)
Independent Variable
b)
Dependent Variable
c)
Control Group
d)
Experimental Group 
6.

The statement "Marc used the same type of glue on each model airplane" is an example of

a)

a control

b)

a constant

c)

an independent variable

d)

a dependent variable

7.
The diagram shows a graduated cylinder containing water.  From which position will the most accurate measure of the volume of water be made?
a)
Position 1
b)
Position 2
c)
Position 3
d)
Position 4
8.

What is the volume of the two red beads?

a)

2.4 mL

b)

4.0 mL

c)

6.0 mL

d)

2.0 mL

9.
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
10.

The mass shown in the image is

a)

100.56 g

b)

105.6 g

c)

105.6 g/mL

d)

156 g

11.

According to the graph, what is the volume of a 10 gram sample of this mineral?

a)

4 cubic cm

b)

2.5 cubic cm

c)

4.0 cubic cm

d)

6.0 cubic cm

12.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
13.

Which Law? "An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Newton's 4th Law

14.

Which Law? "For every action, there is an equal and opposite reaction."

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Newton's 4th Law

15.

Which Law? Force = Mass x Acceleration

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Newton's 4th Law

16.
Any push or pull on an object.
a)
force
b)
velocity 
c)
inertia
d)
momentum
17.
When all the forces on an object are equal and opposite, & the net force is zero, that's...
a)
balanced forces
b)
unbalanced forces
c)
terminal velocity
d)
reaction forces
18.
In the picture, the blocks are flying out of the truck based on which of Newton's laws?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 6th Law
19.
Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more mass and requires more force to accelerate.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
20.

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

a)

20N

b)

10N

c)

40N

d)

70N

21.

What law is best described

a)

1st

b)

2nd

c)

3rd

d)

law of motion

22.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
23.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
24.

A swing has potential energy if

a)

it is sitting still

b)

moving at a constant speed

c)

accelerating at a fast pace

d)

using multiple units of kinetic energy

25.

The roller coaster cart has the most gravitational potential energy at position

a)

Z

b)

Y

c)

W

d)

X

26.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
27.

Heat always travels from...

a)

Warm to cool

b)

Cool to warm

c)

Warm to warm

d)

Cool to cool

28.

At what point does the biker have the greatest Kinetic Energy?

a)

Point A

b)

Point B

c)

Point C

d)

Point D

29.

At what point does the biker have the greatest Potential Energy?

a)

Point A

b)

Point B

c)

Point C

d)

Point D

30.

Which Apple has the greatest Gravitational Potential Energy?

a)

Apple A

b)

Apple B

c)

Apple C

d)

Apple D

31.

A hot air balloon rising is an example of ...

a)

conduction

b)

convection

c)

radiation

d)

connection

32.

A snowman melting in the sun

a)

convection

b)

conduction

c)

radiation

d)

connection

33.

A stove top will cook your food because of ___________.

a)

convection

b)

conduction

c)

radiation

d)

connection

34.
________________ is done whenever a force moves an object a distance
a)
load
b)
friction
c)
force
d)
work
35.
A ramp is an example of a(n)
a)
inclined plane
b)
fulcrum
c)
force
d)
lever
36.
All but one of the elements on the left side of the periodic table are
a)
metalloids
b)
nonmetals
c)
metals
d)
gases
37.
What does the 6 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
38.
What does 12.011 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
39.

Structure 16 is the

a)

pancreas

b)

salivary glands

c)

larynx

d)

esophagus

40.

Structure 17 is the

a)

pancreas

b)

liver

c)

stomach

d)

gall bladder

41.

Structure 20 is the

a)

pancreas

b)

stomach

c)

large intestine

d)

small intestine

42.

Structure 8 is the

a)

pancreas

b)

stomach

c)

large intestine

d)

small intestine

43.

Which is not a function of the digestive system?

a)

Break down food into nutrients

b)

absorption of nutrients

c)

elimination of solid waste products

d)

transport of nutrients to cells

44.
Which way is the water moving in this cell?
a)
Water will move out of the cell
b)
Water will move into the cell
45.
Passive transport requires no
a)
concentration gradients
b)
osmosis
c)
motion
d)
energy
46.

A drop of food coloring is drooped into a glass of water. After about 10 minutes the food coloring particles are spread out evenly. What process has caused the food coloring to spread?

a)

Active Transport

b)

Diffusion

c)

Endocytosis

d)

Exocytosis

47.

Moving molecules across membranes using energy is called ...

a)

Diffusion

b)

Active transport

c)

passive transport

d)

osmosis

48.

___________ & _____________ are opposite processes involving the same substances.

a)

cellular respiration, photosynthesis

b)

diffusion, osmosis

c)

active transport, cellular respiration

d)

meiosis, mitosis

49.

A cell membrane is made up mostly of a(n):

a)

Enzyme Layer

b)

Protein Bilayer

c)

Cholesterol Layer

d)

Lipid Bilayer

50.

Gathers oxygen from the environment and gets rid of carbon dioxide from the body.

a)

cardiovascular system

b)

respiratory system

c)

endocrine system

d)

lymphatic system

51.

Supports the body and protects important organs.

a)

skeletal system

b)

muscular system

c)

nervous system

d)

digestive system

52.

Allows movement of body parts.

a)

skeletal system

b)

digestive system

c)

excretory system

d)

muscular system

53.

Breaks down food into nutrients that can be used by the body.

a)

excretory system

b)

circulatory system

c)

digestive system

d)

nervous sytem

54.

Responds to sensory information by transmitting signals to and from different parts of the body.

a)

lymphatic system

b)

endocrine system

c)

circulatory system

d)

nervous system

55.

Removes wastes from blood.

a)

excretory system

b)

lymphatic system

c)

endocrine system

d)

digestive system

56.

Makes hormones that regulate conditions inside the body.

a)

circulatory system

b)

respiratory system

c)

endocrine system

d)

muscular system

57.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
58.

Which of the following is an example of a Thermal Conductor?

a)

Plastic

b)

Styrofoam

c)

Wood

d)

Copper

59.

Which of the following is an example of a Thermal Insulator?

a)

Iron

b)

Aluminum

c)

Wood

d)

Copper

60.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
61.
The mass number of an atom is its number of
a)
electrons
b)
protons
c)
neutrons
d)
protons + neutrons
62.
Which of the following is the correct order of the digestive tract?
a)
mouth, esophagus, small intestine, stomach, large intestine, rectum/anus
b)
mouth, stomach, esophagus, small intestine, large intestine, rectum/anus
c)
mouth, esophagus, stomach, small intestine, large intestine, rectum/anus
d)
mouth, esophagus, large intestine, small intestine, rectum/anus
63.
How many calories would you consume if you ate the entire product? 
a)
50
b)
200
c)
990
d)
110
64.

When rings of smooth muscle contract in a wave-like motion to move food through the digestive system it is called. . .

a)

peristalsis

b)

homeostasis

c)

wave transport

d)

contractile wave propulsion

65.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

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