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Science Review

Total questions: 50

Worksheet time: 59mins

Name
Class
Date
1.

How many Hydrogen are in 4H2O?

a)

6

b)

8

c)

2

d)

4

2.

2H2 + O2 ----> 2H2O What is the product?

a)

------>

b)

2H2O

c)

2H2+ O2

3.

Number of N in (NH₄)₂CrO₄

a)

1

b)

2

c)

8

d)

16

4.
Number of H in 3(NH₄)₂CrO₄
a)
4
b)
2
c)
8
d)
24
5.
When the visible (lit) portion of the moon is increasing, the moon is:
a)
waning
b)
full
c)
waxing
d)
new
6.

Approximately how much time passes between the new moon and full moon?

a)

one month

b)

two weeks

c)

3 days

d)

24 hours

7.
Name the moon phase that would come AFTER this moon.
a)
waning crescent
b)
waxing crescent
c)
waning gibbous
d)
waxing gibbous
8.

Name the moon phase that follows this phase.

a)

First Quarter

b)

Waxing Gibbous

c)

Waning Gibbous

d)

Waxing Crescent

9.
What moon phase came right BEFORE this one?
a)
First Quarter
b)
Last Quarter
c)
New Moon
d)
Full Moon
10.
What moon phase is at position 3? 
a)
waxing crescent 
b)
1st quarter
c)
3rd quarter 
d)
waning crescent 
11.

What is the formula for density?

a)

density = mass x volume

b)

density = mass / volume

c)

density = mass + volume

d)

density = mass - volume

12.

Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?

a)

3 g/cm3

b)

1/3 g/cm3

c)

27 g/cm3

d)

39 g/cm3

13.

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

14.

Which is a physical change?

a)

melting ice

b)

burning wood

c)

rotting food

d)

rusting iron

15.

Which word does NOT describe a chemical change?

a)

Precipitate

b)

Bubbles, production of gas

c)

Color change

d)

Evaporate

16.

production of heat or light is evidence that a ________ may have occurred

a)

chemical change

b)

physical change

17.

Which of the following elements makes an element an organic compound?

a)

Sodium

b)

oxygen

c)

carbon

d)

gold

18.

Which of the following formulas represents and organic compound?

a)

NH3

b)

H2O

c)

C12H22O11

d)

NaCl

19.
Balance this equation
_Zn+_HCl-->_ZnCl2 +_H2
a)
1,1,2,1
b)
1,1,1,2
c)
1,2,1,1
d)
2,1,1,1
20.

Balance this equation, Ca + H2O --> CaO + H2

a)

Ca + 2H2O --> CaO + 2H2

b)

2Ca + H2O --> CaO + H2

c)

Its balanced as it is

d)

Cannot be balanced

21.
What coefficient should be used to make the following equation balanced?
N2+O2--> _NO 
a)
1
b)
2
c)
3
d)
4
22.

How many atoms of carbon (C) are in C6H12O6?

a)

3

b)

6

c)

12

d)

24

23.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
24.

What is the right part of a chemical equation called...

H2 + O --> H2O

a)

Reactants

b)

Products

c)

Yields

d)

Chemical Equation

25.

Identify the reactants in the following equation:

HgO --> Hg + O2

a)

HgO

b)

Hg

c)

O

26.

Which of the following is the CORRECT description of 2CaCO3?

a)

Two calcium, one carbon, three oxygen

b)

Two calcium, two carbon, three oxygen

c)

Two calcium, three carbon, three oxygen

d)

Two calcium, two carbon, six oxygen

27.
What does malleable mean?
a)
able to bend
b)
will break easily
c)
can be used for wire
d)
is shiny
28.

What does ductile mean?

a)

breaks

b)

bends

c)

used in a wire

d)

used as an insulator

29.
What side of the periodic table are metals on?
a)
left
b)
right
c)
top
d)
bottom
30.
What side of the periodic table are nonmetals on?
a)
left
b)
right 
c)
top
d)
bottom
31.
Why do metals reflect light?
a)
metals have a dull luster
b)
metals have a shiny luster
32.

What do metals conduct?

a)

heat

b)

electricity

c)

both

d)

neither

33.
In the little mermaid, what did Ariel give up in order to get a pair of legs?
a)
her hair
b)
her sight
c)
her best friend flounder
d)
her voice
34.
Percy Jackson was the son of what famous Greek god?
a)
Zeus
b)
Hades
c)
Poseidon
d)
Ares
35.
In this very popular on-line game, the player controls a cell inside a map that represents a petri dish.
a)
Minecraft
b)
Pokemon Go!
c)
Moco Verde, Moco Azul
d)
Agar.io
36.
a)
SIMS
b)
MINECRAFT
c)
MINECRATT
d)
MINDCRAFT
37.
a)
POKEMON
b)
POKEMAN
c)
MOKEPAN
d)
ASH
38.
a)
DONKEY KONG
b)
DONKEY KONG JR.
c)
KING KONG
d)
DONKEY KONG COUNTRY
39.
a)
MOONSCAPE
b)
SKYRIM
c)
SIMS 10
d)
SKRYIM
40.
a)
LEGEND OF ZELDA: OCARINA OF TIME
b)
LEGEND OF ZELDA: A LINK TO THE PAST
c)
LEGEND OF ZELDA: WIND WAKER
d)
LEGEND OF ZELDA: MAJORA'S MASK
41.
Which organism make their own food through the process of photosynthesis? 
a)
decomposer
b)
consumer
c)
herbivore
d)
producer 
42.
A system made up of organisms interacting with one another
a)
biology
b)
abiotic
c)
biotic
d)
ecosystem
43.
Organisms that make up the living part of an ecosystem.
a)
abiotic
b)
biotic factors
c)
ecology
d)
ecosystems
44.
Nonliving things found in an ecosystem.
a)
factories
b)
factor trees
c)
biotic factors
d)
abiotic factors
45.
The study of interactions in an ecosystem.
a)
ecology
b)
philosophy
c)
scientology
d)
biology
46.
A group of the same type of organisms living in the same place at the same time.
a)
threatened species
b)
populations
c)
community
d)
limiting factor
47.

All of the populations that live in one area together

a)

limiting factors

b)

populations

c)

community

d)

speed limit

48.
Something that limits the size  of a population.
a)
maxfactor
b)
factor tree
c)
the x factor
d)
limiting factor
49.
Which is a biotic factor?
a)
sunlight
b)
air 
c)
bacteria
d)
all of the above
50.
Which statement is correct?
a)
A population is the same as a community
b)
A community is a group of populations
c)
A community is a part of a population
d)
A population is a group of communities

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