Question

model 1 - copper samples
group number|volume (cm³)|mass (g)|substance
1|2.0|17.92|copper
2|6.0|50.89|copper
3|10.0|93.45|copper
4|8.0|79.30|copper
5|14.0|125.44|copper
6|4.0|39.80|copper
7|12.0|103.85|copper

1. what substance were the students working with to
2. what variables did the students measure to produce
3. briefly describe an experiment that the class might
4. consider the data in model 1.

Explanation:

1. The table clearly labels the substance as copper for all samples.
2. The columns in the table are labeled "Volume" and "Mass", which are the variables measured.
3. An experiment to collect such data could involve using different - sized pieces of copper. First, measure the volume of each piece (e.g., by water - displacement method for irregularly shaped pieces or by geometric formulas for regular - shaped ones). Then, use a balance to measure the mass of each piece. Record the volume and mass data for each sample.
4. The independent variable is the variable that is deliberately changed or controlled in an experiment. Here, the volume of the copper samples is likely being deliberately varied, so volume is the independent variable.

Answer:

1. Copper
2. Mass and volume
3. Measure the volume of different - sized copper pieces (using water - displacement or geometric formulas) and then measure their masses using a balance, and record the data.
4. Volume