Introduction to Matter

Which of the following is NOT considered matter?

The amount of space occupied by matter determines its mass.

The force that holds the molecules of a substance together is called the ______.

Which state of matter has a fixed volume but not a fixed shape?

Match each process with the correct change in state of matter:

What happens to the molecules of a solid during melting?

Sublimation is when a liquid turns directly into a gas.

Which of the following subatomic particles has a positive charge?

What determines the atomic number of an element?

In the periodic table, vertical columns are known as ______.

Which of these elements is classified as a halogen?

Compounds, like carbon dioxide (CO2), are found on the periodic table.

What type of elements are typically found on the left side of the periodic table?

What is formed when an element combines with oxygen?

A substance made up of two or more different chemical elements combined in a fixed ratio is called a _______.

Which of the following is a characteristic of metals?

All metals are hard solids at room temperature.

Which group of elements is known for having full outer shells, making them very stable?

What term describes a substance that can dissolve in a solvent?

The process of separating a solid from a liquid by passing it through a filter medium is called ______.

Which separation technique is used to separate liquids based on differences in their boiling points?

In a solution, the solute dissolves the solvent.

Which of the following circuit components measures the potential difference (voltage)?

What unit is used to measure electric current?

In a series circuit, the current is ______ throughout the circuit.

If one component breaks in a series circuit, what happens to the rest of the circuit?

In a parallel circuit, the total resistance is greater than the largest individual resistance.

What is the correct formula for calculating resistance (R)?

What type of materials are attracted to magnets?

Like magnetic poles ______, while opposite poles attract

Which of the following describes the Earth's crust?

The Earth's outer core is solid.

Which process involves plants absorbing carbon dioxide?

What gas is released by plants during photosynthesis?

Plants convert carbon dioxide and water into glucose and oxygen using ______.

What is the main purpose of chlorophyll in plants?

Aerobic respiration releases more energy than anaerobic respiration.

Which of the following best describes the law of conservation of energy?

What is the name for the energy transferred in the form of waves?

The basic unit of energy is the ______.