1.
The name of the organ in this picture is the ________________.
A. 
B. 
C. 
D. 
2.
A neutral solution has a pH value of ________ and with universal indicator added it becomes _________________
A. 
B. 
C. 
D. 
3.
The main process taking place in this organ is _______________.
A. 
B. 
C. 
D. 
4.
The reaction of an acid and a base is called_______________.
A. 
B. 
C. 
D. 
5.
A turbine in a generator converts mechanical energy into ______________ energy.
A. 
B. 
C. 
D. 
6.
Circuit breakers are used more often than fuses because they are _______________.
A. 
B. 
C. 
D. 
7.
Carbon dioxide turns limewater ______________.
A. 
B. 
C. 
D. 
8.
Air resistance is the result of what force?
A. 
B. 
C. 
D. 
9.
In this picture what two forces are affecting the skydivers?
A. 
B. 
Friction and Air resistance
C. 
Gravity and water resistance
D. 
10.
In a fair test how many things can you change?
A. 
B. 
C. 
D. 
E. 
11.
What hazard symbol is this?
A. 
B. 
C. 
D. 
12.
When using a chemical with this symbol you should always _____________________.
A. 
B. 
C. 
D. 
13.
A shark has a very low resistance in the water because it is __________________
A. 
B. 
C. 
D. 
14.
A force is a push or pull that can cause an object to change speed, ____________ and size.
A. 
B. 
C. 
D. 
15.
A newton meter is used to measure _______________.
A. 
B. 
C. 
D. 
16.
An example of a liquid with low viscosity is ________________.
A. 
B. 
C. 
D. 
17.
The liquid with the highest viscosity is ____________.
A. 
B. 
C. 
D. 
18.
The word used to describe how well a liquid flows is ___________________.
A. 
B. 
C. 
D. 
19.
A chemical that reacts with acids and dissolves in water is an alkali. Which of the following is an alkali?
A. 
B. 
C. 
D. 
20.
When you add a 100 ml of a strong base to 5ml of a weak acid the pH value would most like be what pH?
A. 
B. 
C. 
D. 
21.
When two surfaces rub against each other, they slow down as energy is lost as ________.
A. 
B. 
C. 
D. 
22.
When you swim through the water your body is affected by friction with the water. This is called _________________.
A. 
B. 
C. 
D. 
23.
The main cause of all weather is the_________.
A. 
B. 
C. 
D. 
24.
Two ways people can increase friction are _____________ and ________________.
A. 
Increase surface area and roughen the surface
B. 
Decrease surface area and smoothen the surface
C. 
Increase surface area and smoothen the surface
D. 
Make the surface harder and polish it
25.
Three ways people can decrease friction are to make the surface smoother, decrease the amount of surface in contact with the object and add ________________.
A. 
B. 
C. 
D.