A group of students is investigating how the addition of salt impacts the floatation of an egg in water. Four identical cups wer
e 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
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.
Clara is meeting with a new client. She enters the conference room with her head high. She shakes the client's hand and smiles. The client will perceive Clara to be bold and confident. This leaves a position first impression on the client. The smile creates a welcoming environment. The shaking of the hands gives a sense of mental agreement of being open to discuss ideas.
