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science week quiz yr 11

Total questions: 20

Worksheet time: 26mins

Name
Class
Date
1.
Survival of the Fittest and Evolution were proposed by what scientist?
a)
Charles Darwin
b)
Albert Einstein
c)
Steven Hawking
d)
Isaac Newton
2.
Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)
a)
Variation
b)
Adaptation
c)
Behavior
d)
Environment
3.
Where the better adapted organisms survive to pass traits along to offspring.
a)
Evolution
b)
Natural Selection
c)
Extinction
d)
Artifical Selection
4.
Mutations are a change in what?
a)
DNA
b)
tRNA
c)
genotype
d)
phenotype
5.
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly
a)
1%
b)
10%
c)
100%
d)
1000%
6.

If CO2 is 33.8 and CaO is 88.4 what is Limiting Reactant?

a)

88.4

b)

33.8

c)

896.8

7.

When two different atoms combined, they form

a)

Molecule

b)

Atom

c)

Compound

d)

Element

8.
Washing soda has the formula
a)
Na2CO3.7H2O
b)
Na2CO3.10H2O
c)
Na2CO3.H2)
d)
Na2CO3
9.

Who invented the modern liquid-in-glass thermometer?

a)

Galileo Galilei

b)

Isaac Newton

c)

Max Planck

d)

Anders Celsius

10.

It is the measure of how hot or cold something is.

a)

Force

b)

Mass

c)

Temperature

d)

Calories

11.

A rectangle has sides of length 6.1cm and 8.1cm correct to one decimal place. calculate the upper bound of the area of the rectangle as accurately as possible.

4 lines
12.

A floor is covered by 600 tiles measuring 10cm by 10cm each. How many 20cm by 20cm tiles are needed to cover the same floor?

4 lines
13.

The interior angles of a triangle are 2x, 3x and 7x. Find the size of the largest angle.

4 lines
14.

Find the size of the largest angle of a tringle with sides measuring 4cm, 7cm and 9cm.

4 lines
15.

The bearing of B from A is 257 degrees. What is the bearing of A from B?

4 lines
16.

The Haber process is the industrial process for making...

a)

Ammonia

b)

Sulfuric Acid

c)

Margarine

d)

Salts

17.

What are the raw materials for the Haber process?

a)

Hydrogen and Oxygen

b)

Hydrogen and Nitrogen

c)

Water and Nitrogen

d)

Oxygen and Nitrogen

18.

Reaction between X and Y forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z?

a)

Has high melting point

b)

Has low melting point

c)

Conducts electricity in molten state

d)

Occurs as solid

19.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
20.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune