S1 G3 EYE Revision

A hypothesis should be a ___________.

• statement

• question

Which of the following is the SI unit for mass?

• kg

• g

• pounds

• m

Which of the following is not used to measure the volume of an object?

• 
• 
• 
• 

Answer explanation

the test tube has no marking to measure volume

The archer that shot this is ​ (a)   because ​ (b)   .

• precise
• the arrows are close to each other
• accurate
• the arrows are far from the bullseye

Categorize the 4 errors below.

Groups:

(a) consistent errors

,

(b) inconsistent errors

• human reaction time

• environmental factors (wind/sun)

• zero error

• parallax error

An object that gets scratched easily is __________.

• not strong

• soft

• inflexible

• not dense

Reorder the steps of the displacement method to find the volume of an irregular object.

• Measure final volume of water

• Measure initial volume of water

• Volume of object = Final volume - Initial volume

• Drop object into water.

Which option shows the correct relationship of the densities of apple, vegetable oil and plastic bottle cap?

• apple > vegetable oil > bottle cap

• apple < vegetable oil < bottle cap

• apple < vegetable oil = bottle cap

• apple > vegetable oil = bottle cap

Melting/boiling points refer to specific _____________ where objects change state.

Organize these options into the right categories.

Groups:

(a) Chemically combined

,

(b) Physically combined

• compound

• bronze (copper + tin)

• sand + water

• mixture

• sodium chloride

• H2O