The Great Term 4 Science Spectacular

Question 1

In a Scientific Investigation the Independent Variable is...

Accepted Answer

the Variable that the researcher changes

Question 2

The problem seen here is a result of which natural phenomenon?

Accepted Answer

Convection currents in the Earth's mantle

Question 3

This is your teacher's grandson. Upon seeing this picture you should immediately say (gently)

Accepted Answer

Aw ... cute, Aw ... cute, Aw ... cute, Aw ... cute

Question 4

Carbon Dioxide dissolves easily in water to form a weak acid.

Accepted Answer

True

Question 5

pH is a measure of Acidity.

Accepted Answer

pH 1 is strong acid; pH 14 is strong base

Question 6

In a Scientific Investigation, the Dependent Variable is...

Accepted Answer

something you measure

Question 7

The Two TIme Winner of the RHS Best Dressed Male award (in his formative years)

Accepted Answer

true

Question 8

The Limewater Test show that Carbon Dioxide is present if:

Accepted Answer

Clear liquid turns milky white

Question 9

This is the positive ion in a Chemical Formula. How many negative ions are on the other end?

Accepted Answer

4

Question 10

In our Investigation of the effect of Water temperature on Carbon Dioxide dissolving,

Accepted Answer

controlled variables included flask shape & volume of water

Question 11

Carbon Dioxide is poisonous

Accepted Answer

False

Question 12

Why does a good Scientific Investigation write-up include an Introduction?

Accepted Answer

To provide the context of the investigation

Question 13

Carbon Dioxide dissolves better in water...

Accepted Answer

as the water gets colder

Question 14

Carbon Dioxide dissolves in water to make Carbonic Acid. How could we test water for acidity?

Accepted Answer

Bromothymol blue, pH meter or Universal Indicator

Question 15

We can find out if Carbon Dioxide is present using a test called:

Accepted Answer

Limewater test

Question 16

As oceans heat up, the amount of atmospheric Carbon Dioxide increases. Why is this a problem?

Accepted Answer

Carbon Dioxide is a greenhouse gas, so makes it even hotter

Question 17

This "world famous scientist" is known for which activity?

Accepted Answer

Winning the Best Dressed Male award for two years in a row

Question 18

We include a Method in our experimental write-up for what reason?

Accepted Answer

So someone else could test to see if our results were valid

Question 19

What was the most appropriate method of graphical analysis for our Scientific Investigation?

Accepted Answer

Beard and whiskers

Question 20

Litmus paper changes colour according to pH.

Accepted Answer

It turns blue with a base and red with an acid

Question 21

NZ is the birthplace of many famous athletes. Name the runner in this Sydney marathon?

Accepted Answer

J. M. Cowey

Questions 21