Situation:
object will
Elia made an investigation with an electromagnet made from a battery and wire wrapped around a nail
no parachut
Different sizes of nail were used. The number of paperclips the electromagnet could pick up was recorded.
4. From the situation given, what is the independent variable? different sizes of nail
Dependent variable?
Constant variable?
(3pts)
5. Which of the following statements describes the appearance of heterogenous mixtures?
1. It has a uniform composition.
II. The materials mixed can be separated easily.
III. Only one phase can be seen after mixing.
IV. Each component is recognizable and can be distinguished.
B. I and IV
C. ll and III
AI and II
D. II and IV
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Answer:Dependent variable
Explanation: