The video tutorial covers the fundamental concepts of matter, including its definition, states, and properties. It distinguishes between physical and chemical properties and changes, explaining how matter can transition between different states. The tutorial also explores qualitative and quantitative properties, providing examples of each. Additionally, it highlights the differences between chemical and physical changes, offering clues to identify them. Finally, the video defines energy, explaining its role and how it differs from matter.

What is the definition of matter?

• Anything that is visible

• Anything that can move

• Anything that has energy

• Anything that has mass and volume

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NGSS.MS-PS1-5

Which state of matter has particles that are very close together and vibrate about a fixed point?

• Liquid

• Gas

• Solid

• Plasma

What happens to the volume of a gas when it is placed in a larger container?

• It disappears

• It increases

• It remains the same

• It decreases

What is the process called when a gas changes directly into a solid?

• Melting

• Deposition

• Condensation

• Sublimation

Which of the following is a chemical property?

• Density

• Color

• Reactivity with acid

• Melting point

What type of property is the freezing point of water?

• Quantitative

• Qualitative

• Physical

• Chemical

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NGSS.MS-PS1-4

Which of the following is an example of a physical change?

• Decomposing water

• Freezing water

• Rusting iron

• Burning wood

What is a clue that a chemical change has occurred?

• Change in size

• Change in state

• Change in shape

• Change in temperature

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NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which form of energy allows us to create electricity?

• Sound energy

• Nuclear energy

• Mechanical energy

• Heat energy

What is the main difference between a chemical and a physical change?

• Physical change alters molecular structure

• Chemical change does not alter molecular structure

• Physical change results in a new substance

• Chemical change results in a new substance

Tags

NGSS.MS-PS1-2