Question

Debbie was doing a science lab, and she was instructed to decide whether a piece of plastic would float or sink without actually putting the plastic in the water. how could she do this?

Answer 1

''Find the density of the plastic and compare it to the density of water''

Answer 2

Debbie can take the following step

1. Find the mass of the substance in kilograms by measuring on a chemical balance and record

2. Fine the volume of the plastic(m^3). if it is a cylindrical plastic, volume will be area multiplied by height(
`\pi r^(2) h`)

3. Density of a substance is the ratio of the mass of a substance to its volume.Find its density and record

4. Compare the density of the substance to that of water which is 1000kg/m^3.

5. If it is greater than that of water then it will sink, if it is less than that of water it will float

Step-by-step explanation:

Debbie can take the following step

1. Find the mass of the substance in kilograms by measuring on a chemical balance and record

2. Fine the volume of the plastic(m^3). if it is a cylindrical plastic, volume will be area multiplied by height(
`\pi r^(2) h`)

3. Density of a substance is the ratio of the mass of a substance to its volume.Find its density and record

4. Compare the density of the substance to that of water which is 1000kg/m^3.

5. If it is greater than that of water then it will sink, if it is less than that of water it will float