Virtual Day 03/06/2025

What is the state of matter characterized by having a definite shape and volume?

• Solid

• Liquid

• Gas

• Plasma

Which process describes the change from a liquid to a gas?

• Freezing

• Condensation

• Evaporation

• Sublimation

According to Charles's Law, what happens to the volume of a gas when the temperature increases, assuming pressure is constant?

• Volume decreases

• Volume remains constant

• Volume increases

• Volume becomes zero

Boyle's Law states that the pressure of a gas is inversely proportional to its volume. If the volume of a gas is halved, what happens to its pressure?

• Pressure is halved

• Pressure doubles

• Pressure remains constant

• Pressure quadruples

• 1

• 2

• 3

• 4

Which element is located in Group 1, Period 2 of the periodic table?

• Hydrogen

• Lithium

• Sodium

• Potassium

What is the main idea of atomic theory?

• Atoms are indivisible and indestructible

• Atoms are made of protons, neutrons, and electrons

• Atoms can be created and destroyed

• Atoms are the smallest unit of matter

Which of the following is a chemical change?

• Melting ice

• Burning wood

• Dissolving sugar in water

• Breaking glass

Which of the following is a physical change?

• Rusting of iron

• Baking a cake

• Boiling water

• Digesting food

Which of the following is a physical property of matter?

• Flammability

• Reactivity with acid

• Density

• Ability to rust