Grade 7 Science: States of Matter Quiz
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Questions and Answers

What is the definition of density?

  • The ability to attract a magnet.
  • The ability to dissolve another matter.
  • How much mass is packed into a certain volume. (correct)
  • The amount of space something takes up.

Which state of matter has a definite shape and volume?

  • Liquid
  • Plasma
  • Solid (correct)
  • Gas

What property measures how well a material conducts heat or electricity?

  • Density
  • Magnetism
  • Conductivity (correct)
  • Volume

What term describes the ability of a matter to dissolve another matter?

<p>Solubility (B)</p> Signup and view all the answers

Which of the following is NOT a state of matter?

<p>Liquid crystal (A)</p> Signup and view all the answers

What is the initial state of water described in the document?

<p>Ice cube (B)</p> Signup and view all the answers

Which of the following is NOT a property of a physical change?

<p>Mass (A)</p> Signup and view all the answers

What transformation occurs after the ice cube turns into water?

<p>The water becomes vapor (B)</p> Signup and view all the answers

Which of the following examples indicates a physical change?

<p>Melting an ice cube (D)</p> Signup and view all the answers

Which of the following phrases best describes the concept of a physical change?

<p>A reversible change in state or appearance (D)</p> Signup and view all the answers

What state of matter is represented when ice changes due to the application of heat?

<p>Liquid (D)</p> Signup and view all the answers

What is the process called when water changes from a liquid to a gas?

<p>Evaporation (D)</p> Signup and view all the answers

Which process occurs at the boiling point of water?

<p>Evaporation (B)</p> Signup and view all the answers

What type of matter is defined as anything that you can touch, smell, or feel?

<p>Matter (C)</p> Signup and view all the answers

Which component is necessary for the transformation of ice to water?

<p>Heat (B)</p> Signup and view all the answers

Flashcards

Mass

The amount of matter in an object, measured in kilograms.

Volume

The amount of space an object occupies.

Density

Mass per unit volume, how compact.

State of Matter

Physical form of matter (solid, liquid, or gas).

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Conductivity

The ability to transfer heat or electricity.

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Physical Change

A change in the form or appearance of matter without changing its chemical composition.

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Ice to Water

A physical change where ice transforms into liquid water.

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Water to Vapor

A physical change where liquid water transforms into water vapor.

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Color of Matter

A physical property that describes the wavelengths of light reflected from a given material.

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Shape of Matter

The outline or form of a given material.

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Matter

Anything that can be touched, smelled, or felt.

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Solid to Liquid

A state change where a solid turns into a liquid.

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Liquid to Gas

A state change where a liquid turns into a gas.

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Evaporation Point

The temperature at which a liquid changes to a gas.

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Boiling Point

The temperature at which a liquid boils, changing to steam.

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