ITS Ch 1 Videos

A. The variable that is measured

B. The variable that stays constant

C. The variable that is changed or manipulated

D. The variable that is ignored

The variable that responds to changes in the independent variable

The variable that is unrelated to the experiment

The variable that is changed by the scientist

The variable that is kept the same

AThey help confuse the results

B

They ensure that only the independent variable affects the outcome

CThey make the experiment more difficult

D They are used to create new hypotheses

o   A. 300 s

o   B. 60 s

o   C. 120 s

o   D. 30 s

3.2 x 10^-3

3.2 x 10^3

32 x 10^-5

0.32 x 10^1

Use only the larger exponent

Must have same exponent to add.

Just add the coefficients

Multiply the values together

6.022 x 10^23

7.0 x 10^23

6.1 x 10^23

6.0 x 10^23

3

1

4

2