NGS5-M2 REVISION-SCIENCE-8C-2024-2025

A measure of the amount of matter in an object is its _______.

• mass

• density

• volume

• weight

Angel's favorite bike begins to rust. The rust is an example of which of the following?

• Physical change

• Endothermic reaction

• Exothermic reaction

• Chemical change

Emilie holds the end of a metal rod in the flame of a Bunsen burner. After a couple of minutes, the rod becomes too hot for Emilie to hold. Which of the following caused the heating of the rod?

• Radiation

• Convection

• Induction

• Conduction

_______ is the mass per unit volume of a substance.

• Mass

• Density

• Chemistry

• Weight

All of the following are acceptable units for density, EXCEPT (a)  

• g/mL

• kg/L

• g/cc

• g/cm

Every chemical or physical change in matter includes a change in _______.

• volume

• energy

• temperature

• mass

7. The Sun transfers thermal energy to Earth by _______.

• conduction

• convection

• radiation

• none of the above.

Vaporization that occurs only the surface of a liquid is called _______.

• condensation

• evaporation

• boiling

• deposition

One of the ending materials in a chemical reaction is called a(n) _______?

• substance

• reactant

• product

• atom

Thermal energy always moves _________.

• From a higher temperature to a lower temperature.

• From a lower temperature to a higher temperature.

• From inside to outside.

• From outside to inside.