Question

A group of students is investigating how the addition of salt impacts the floatation of an egg in water. Four identical cups were taken for the experiment. The data of the experiment are shown.

Experimental Record
Cup Amount of Water (mL) Amount of Salt (g) Level of Egg above Water
1 450 0 Sinks to bottom
2 450 68 2 cm
3 450 136 3 cm
4 450 272 4 cm

What was the independent variable in this experiment?
Level of egg above water
Amount of water in the cup
Amount of salt added
Type of cup

Answer 1

the answer is the amount of salt added..

Answer 2

The correct answer is "Amount of salt added".

Step-by-step explanation:

The independent variable in an experiment is the one expected to produce the effect, and the one that is not affected by the other variables. In this experiment a group of students is investigating how the addition of salt impacts the floatation of an egg in water. We can conclude that the amount of salt is the independent variable because is the one expected to produce the effect (the floatation of an egg in water) and the one that the students are adding independently of the other variables.