PM2 Review Questions 2023

Front

What property causes a boat to float and a ball to sink?

Back

Shape

Front

Why does Kaleia stir the mixture after adding sugar?

Back

To dissolve the solute faster.

Front

What variable should be placed on the x-axis in an experiment about water temperature and antacid tablet dissolution?

Back

Water temperature; it is the independent variable.

Front

What is the procedure to separate water and rubber pellets?

Back

Filtration.

Front

What is the procedure to separate sugar and pebbles?

Back

Sifting.

Front

What is the procedure to separate water and salt?

Back

Evaporation.

Front

What is a metal?

Back

A substance that can conduct electricity.

Front

What is a nonmetal?

Back

A substance that generally does not conduct electricity.

Front

What is the difference between independent and dependent variables?

Back

Independent variables are manipulated, while dependent variables are measured.

Front

What is filtration?

Back

A process to separate solids from liquids using a filter.