Nina carried out an activity to find out the relationship between the number of oranges and its total mass.The result of the activity were recorded in a table below.
Number of oranges

2

5

15

20

Mass (g)

110

295

875

1080

a) What is the aim of the activity?
To investigate the relationship between the number of oranges and the mass.
b) Name two things in this activity that are
(i) changed : Number of oranges
(ii) observed : the mass
c) What can you say about the toatl mass of 20 oranges?
The total mass of 20 oranges is the highest.
d) State an inference for your answer in (b).
It is the heaviest because it has the most number of oranges.
e) Can you predict the mass of an orange?
55g.
f ) Based on the table,what is the hypothesis of Nina's activity?
The more oranges,the higher its total mass.