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STEAM Week 2019 Quiz Bee - Grade 7

Total questions: 50

Worksheet time: 1hrs 26mins

Name
Class
Date
1.
The objective when solving an equation is to....
a)
isolate the variable.
b)
check the solution.
c)
guess and check.
d)
Combine Like Terms.
2.
What is the first step to solve this equation:
11 - 3x = 44
a)
Add 3 to both sides
b)
Subtract 11 from both sides
c)
Add 11 to both sides
d)
Divide 3 on both sides.
3.

At 3PM, the outside temperature was 4 degrees. The temperature then fell steadily by 2 degrees every hour for the next 4 hours. What was the temperature at 7PM?

a)

8 degrees

b)

4 degrees

c)

-2 degrees

d)

-4 degrees

4.

Which expressions are equivalent to 12x - 6? Choose all that apply.

a)

-6(2x - 1)

b)

6(2x-1)

c)

6x(2-1)

d)

-6x(2x-1)

e)

-6(-2x + 1)

5.

Jude buys a book on sale at 30% off its original price, B. Which expression represent the sales price of the book?

a)

1- 0.30B

b)

1- 0.70B

c)

(1-0.30)B

d)

(1- 0.70)B

6.

A submarine is at a depth of 400 meters below seal level. The submarine then rises by 185 meters. What is the depth of the submarine now?

a)

215 meters above sea level

b)

215 meters below sea level

c)

585 meters below sea level

d)

585 meters above sea level

7.
Find the product:
(5n-8)(5n+8)
a)
25n2-64
b)
10n2
c)
5n2+16
d)
16
8.
Find the sum.
(3y2 + y3 - 5) + (4y2 -4y + 2y3 + 8)
a)
3y3 + 7y2 - 4y + 3
b)
4y2 + 3y3 - y + 3
c)
-y4 + 2y3 -y - 4
d)
4y3 + 3y2 -3y + 1
9.
Find the difference. 
(3- 2x + 2x2) - (4x -5 +3x2)
a)
x2 + 6x + 8
b)
2x2 + 5x - 7
c)
-x2 -6x + 8
d)
-2x2 + 11x - 4
10.
Simplify the expression.
-3x2( 7x2 - x + 4)
a)
-21x4 + 3x3 -12x2
b)
7x2 - x + 4 (-3x2)
c)
21x4 + 3x3 + 12x2
d)
-12x2 + 3x3 -21x4
11.
What is the degree of the polynomial:
7x3 – 8x2 + 9
a)
5
b)
2
c)
6
d)
3
12.
What type of polynomial is 
 4x2 - 21x + 5
a)
Monomial
b)
Binomial
c)
Trinomial
d)
Quadranomial
13.
Simplify:
a)
-4x - 3
b)
x2 - 3
c)
-4x2 - 6x
d)
-4x - 6
14.
What is the length of the screw?
a)
5cm
b)
6cm
c)
5mm
d)
6m
15.
65g = ___mg
a)
650
b)
6,500
c)
65,000
d)
6
16.
Convert from meters to cm:  9 meters
a)
900 cm
b)
90 cm
c)
0.9 cm
d)
0.09 cm
17.
Translate this phrase into an algebraic expression.
Eight less than the product of four and a number.
Use the variable m to represent the unknown number.
a)
8 - 4m
b)
8m - 4
c)
8m + 4
d)
4m - 8
18.
Translate this phrase into an algebraic expression.
Four divided by the sum of a number and twelve.  
a)
4 / n + 12
b)
4 / 12n
c)
4 / (n + 12) 
d)
(4 / n) + 12
19.
What word phrase can you use to represent "5x + 2"?
a)
five times the sum of a number x and two
b)
two times the sum of a number x and five
c)
a number x times the sum of five and two
d)
the sum of five times a number x and two
20.
Three more than twice the sum of a number and five.  
a)
3 + (2x + 5)
b)
(2x + 5) + 3
c)
2(x + 5) + 3
d)
2/(x + 5) + 3
21.
The basic units of structure and function for both plants and animals are
a)
cells
b)
organs
c)
organ systems
d)
tissues
22.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
23.
When two or more elements combine, they are called mixtures.
a)
True
b)
False
24.
Which is the correct definition of a mixture?
a)
a substance made by mixing other substances together.
b)
When two or more elements combine to form a new substance
25.
Which is the correct definition for molecules?
a)
a thing that is composed of two or more separate elements
b)
the basic unit of a chemical element.
c)
a group of atoms bonded together
d)
a type of element
26.
Is air a compound or a mixture?
a)
Mixture
b)
Compound
c)
Neither
d)
It is a compound and a mixture
27.

Which question would be BEST for investigating using the scientific method?

a)

Who made the first microscope?

b)

How many giraffes live in Africa?

c)

How long ago did dinosaurs live on Earth?

d)

Does the amount of salt in water affect the temperature at which it boils?

28.

What do you call the component in solutions presents in greater amount?

a)

dispersed phase

b)

dispersion medium

c)

solute

d)

solvent

29.

What are the two processes required to separate a mixture of sand, salt and water into three components in the correct order?

a)

decantation and filtration

b)

evaporation and filtration

c)

distillation and filtration

d)

filtration and distillation

30.

Element is a substance that can't be separated into simpler substances by a chemical change. Which of the following substances is an element?

a)

air

b)

carbon

c)

salt

d)

sugar

31.
A car is driven for 3 hours. What else do you need to know to describe this car’s speed?
a)
the road the car in driven on
b)
the time of day
c)
the distance the car is driven
d)
the number of passengers in the car
32.

What is the speed of a runner who runs 400 meters in 40 seconds?

a)

10 meters/second

b)

40 meters/second

c)

100 meters/second

d)

1,600 meters/second

33.
Two cars are in motion for the same amount of time. What will determine which car covers more distance?
a)
the starting position of the each car
b)
the speed of each car
c)
the direction in which each car moves
d)
the length of the car
34.
What is speed?
a)
how much an object’s position changes
b)
how far an object moves
c)
how long an object moves
d)
how far an object moves in a certain amount of time
35.
Wind pushes a toy sailboat across a pond. The boat moves in a straight path. What is changing?
a)
the boat’s direction
b)
the boat’s path
c)
the wind’s direction
d)
the boat’s position
36.

The position of a runner in a race changes as time passes. What could be a reference point to describe the change in position?

a)

the starting line

b)

the runner’s speed

c)

the runner’s right foot

d)

another runner

37.

What is this line of this graph showing?

a)

moving away from starting point at a constant speed

b)

moving back towards the starting point at a constant speed

c)

acceleration (getting faster)

d)

deceleration (getting slower)

38.
Which graph is showing acceleration (getting faster)
a)
D
b)
E
c)
both D and E
d)
neither D or E
39.

What is the speed of the object with this motion graph?

a)

constant speed

b)

not moving

c)

speed increasing

d)

speed increasing at a constant rate

40.

What happened during points B to C?

a)

deceleration

b)

positive constant speed

c)

negative constant speed

d)

acceleration

41.
What is the name of the woman in this print?
a)
Lucy Lou
b)
Jackie Kennedy
c)
Marilyn Monroe
d)
Britney Spears
42.
Where is the light source coming from in this drawing?
a)
Lower left
b)
Upper right
c)
Lower right
d)
There is no light
43.
What is the name of this print?
a)
Tsunami
b)
Hokusai
c)
Look Out Below
d)
The Great Wave
44.
What is the name of the line that is in an image or artwork that separates the land from sky or surface from wall?
a)
Vertical Line
b)
Horizon Line
c)
Vanishing Point
d)
Shadow
45.
What does media mean in the term multi-media?
a)
The tools used to create the artwork (i.e. pastel)
b)
The use of technology to find images for artwork
c)
The type of paper that is used
d)
The different colors of paint used
46.
Computer instructions written and executed in a specific sequence are called
a)
Computer Program
b)
Computer Language
c)
Generation
d)
Tanslation
47.
The evolution of computer language is often known as
a)
Computer Program
b)
Computer Language
c)
Generation
d)
Tanslation
48.

Smaller microcomputers are also called____.

a)

Supercomputers

b)

Mobile computers

c)

Mainframe computers

d)

Microcomputers

49.

Which storage device has the storage capacity upto 2 TB?

a)

CD

b)

DVD

c)

Hard disc

d)

Blue-ray disc

50.

DOS, WINDOWS, LINUX is an example of ?

a)

Website

b)

Word Processor

c)

Database Program

d)

Operating system

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