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Year 10 mega science revision quiz

Total questions: 69

Worksheet time: 47mins

Name
Class
Date
1.

What is the atmosphere?

a)

all the air and gases on the planet

b)

made up of living things

c)

the non-living soil, rocks, and minerals of the Earth

d)

the rivers, lakes, and oceans of the Earth

2.

Comes from the Greek word for "life"

a)

bio-

b)

hydro-

c)

atmo-

d)

geo-

3.

Which compound does NOT contain carbon atoms?

a)

carbon dioxide

b)

ammonium

c)

calcium carbonate

d)

methane

4.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
5.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
6.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
7.
How does the carbon in grass become part of a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion. 
c)
The carbon ends up in the lion's food chain. 
d)
The lion breathes in carbon given out by the plant
8.
How much of the atmosphere is composed of nitrogen gas?
a)
87%
b)
38%
c)
78%
d)
21%
9.
Organisms that break down dead plants & animals and release nitrogen back into atmosphere...
a)
bacteria
b)
plants
c)
animals
d)
producers
10.
Based on this diagram, which of the following can you infer is the chemical formula for gaseous nitrogen?
a)
N
b)
N2
c)
N3
d)
N4
11.
Organisms require nitrogen to make which of the following?
a)
glucose and starch
b)
lipids and nucleic acids
c)
proteins and nucleic acids
d)
carbohydrates and proteins
12.
Process where excess nutrients enter body of water causing overgrowth of aquatic plants and algae...
a)
Eutrophication
b)
Acid Precipitation
c)
Nitrogen Fixation
d)
Decomposition
13.

According to this diagram, plants absorb ______________

a)

nitrates

b)

animals

c)

nitrogen fixing bacteria

d)

decomposers

14.

The greenhouse effect is caused by

a)

more heat arriving at the Earth from the sun

b)

the Earth releasing more heat at night

c)

gases in the air trapping heat released by the Earth

15.

The area of human activity responsible for the highest greenhouse gas emissions is

a)

energy supply

b)

transport

c)

agriculture

d)

industrial

16.

The highest gaseous pollutant is

a)

methane

b)

nitrous oxide

c)

carbon dioxide

d)

fluorinated gases

17.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction. 
18.
What is the left part of a chemical equation called?
2H2 + O2 --> 2H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
19.
What is the right part of a chemical equation called...
2H2 + O2 --> 2H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
20.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
21.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
22.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
23.
How many Aluminum are in Al2O3?
a)
3
b)
2
c)
5
24.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
25.
Is the following equation balanced?...
Al + O2 --> 2Al2O3
a)
Yes!
b)
No!
26.
Which of the following reactions is balanced?
a)
2CH4 + O2 -> CO2 + H2O
b)
CH4 + 2O2 -> CO2 + H2O
c)
CH4 + 2O2 -> CO2 + 2H2O
d)
None of the chemical equations are balanced.
27.
Balance this equation...
HgO --> Hg + O2
a)
It is balanced 
b)
2HgO --> Hg + O2
c)
2HgO --> 2Hg + O2
d)
I don't know...Oh well!
28.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
29.
The following is what type of reaction:
NH3 + HCl  → NH4Cl
a)
Synthesis
b)
Decomposition
c)
Single Replacement Replacement
d)
Double Replacement Replacement
30.
What is decomposition?
a)
putting substances together
b)
breaking substances apart
c)
element replacing another element in a compoud
d)
burning of a subtance
31.
Always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
32.

The diagram below represents a system in the human body. The function of structure X is to _____________

a)

produce energy needed for sperm to move

b)

provide food for the sperm to carry to the egg

c)

produce and store urine

d)

produce sperms and male sex hormones

33.

The male reproductive system produces sex hormones called

a)

Estrogen

b)

Progesterone

c)

Testosterone

d)

Andresterone

34.

The fallopian tubes connect

a)

the ovaries to the uterus

b)

the uterus to the vagina

c)

the ovaries to the vagina

35.
What are the four nitrogen bases?
a)
adenine, thymine, guanine, cytosine
b)
adenine, lysine, prolene, guanine
c)
arganine, cytosine, lysine, purine
d)
lysine, cytosine, lucine, guanine
36.
The shape of the DNA molecule is a double __________________?
a)
"S"
b)
helix
c)
rope
d)
curve
37.
When DNA makes a copy of itself, the new strands are identical or different?
a)
identical
b)
different
38.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
39.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
40.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
41.
Who is considered the "father of genetics"?
a)
Gregor Mendel
b)
Reginald Punnett
c)
James Watson
d)
Justin Bieber
42.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
43.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
44.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
45.
In a Punnett square each box represents a(n)....
a)
offspring
b)
parent
c)
gene
d)
trait
46.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation
47.
What type of gene mutation has occurred here? 
T-G-A-C-C-A
T-G-A-C-C-A-A
a)
Base Substitution
b)
Base Deletion
c)
Base Insertion
d)
Frameshift 
48.
Where do mutations occur?
a)
DNA and RNA
b)
DNA 
c)
RNA
d)
mRNA and tRNA
49.
What is the net force and the direction of movement?
a)
50 Newtons, Left
b)
50 Newtons, Right
c)
500 Newtons, RIght
d)
450 Newtons, LEft
50.
What is Newtons 1st law of motion?
a)
Force= Mass multiplied by acceleration 
b)
An object at rest stays at rest unless acted on an unbalanced force. (inertia)
c)
For every action there is a equal and opposite  re-action.
d)
law of gravity 
51.
What is Newtons 2nd law of motion?
a)
Pancakes 
b)
Force= Mass multiplied by acceleration
c)
For every action there is a equal and opposite  re-action.
d)
Law of gravity 
52.
For every action there is a equal and opposite...
a)
action
b)
movement 
c)
re-action 
d)
Newtons law of inertia 
53.
What Newtons law does this picture represent
a)
Newtons 2nd law 
b)
Law of gravity 
c)
Newtons 1st law
d)
Newtons 5th law
54.
A unbalanced force means that an object is 
a)
zero net force
b)
changing its motion
c)
sitting still
d)
object at rest
55.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
law of gravity 
c)
Newtons 4th law 
d)
Newtons 2nd law
56.
A train travels 25 km in .5 hrs. How fast is the train going?
a)
25 miles/hr
b)
5 miles/hr
c)
125 km/hr
d)
50 km/hr
57.
What is the equation to calculate distance?
a)
distance = speed/time
b)
distance = time/speed
c)
distance = speed/distance
d)
distance = speed x time 
58.
A car travels 30 miles/hr for 3 hours, calculate the distance it will travel
a)
90 miles
b)
10 miles
c)
600 miles
d)
90 km
59.
What is the equation to calculate speed?
a)
speed = distance/time
b)
speed = time/distance
c)
speed = time x distance 
d)
speed = speed/time 
60.
Scientist find dinosaur fossils in the bottom of a cliff and mammals fossils in the middle layer, what can be inferred?
a)
dinosaurs ate plants
b)
dinosaurs were eaten by the mammals
c)
they lived at the same time
d)
dinosaurs lived before the mammals
61.
This makes an organism more suited to its enviornment
a)
species
b)
lifespan
c)
adaptation
d)
mutation
62.

Beak shape, camouflage, and webbed feet are all examples of which type of adaptation?

a)

Behavioral Adaptation

b)

Physical Adaptation

63.

Select ALL the parts of Natural Selection.

a)

overproduction

b)

evolution

c)

variation

d)

selection

e)

competition

64.

List four factors that affects the rate of a reaction

a)

temperature

b)

concentration

c)

surface area

d)

volume

e)

catalysts

65.

A temperature increase causes the particles ......

a)

to slow down

b)

move faster

c)

collide higher

d)

in the right order

66.

How does a catalyst work in speeding up a reaction?

a)

By lowering the activation energy or reaction

b)

by giving them more energy

c)

by making them more available

67.
The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?
a)
Red, because the activation energy is larger
b)
Blue, because the activation energy is lower
c)
both reaction progress at the same rate
68.

The ______________is required to break the bonds of the reactants.

a)

Carbonic energy

b)

Activation energy

c)

Plutonic energy

d)

Energi Gaib

69.
Grinding a seltzer tablet into powder increases the rate of reaction due to increased
a)
concentration
b)
surface area
c)
temperature
d)
reactants

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