Crash Course Kids #3.2: Particles of Your World

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Questions and Answers

What is matter?

  • Anything that has weight and takes up space (correct)
  • Anything that is important
  • Anything that is not important
  • Anything that is visible to the naked eye

How are particles described in the video?

  • As evenly spaced balls floating in the air
  • As irregularly shaped balls forming patterns
  • As invisible and super small balls packed together (correct)
  • As large and visible balls packed together

What determines the properties of an object?

  • The shape of the object
  • The size of the object
  • The tiny particles that make up the object (correct)
  • The color of the object

In which state of matter are particles packed so tight that they don't move?

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

What is the main difference between a solid and a liquid, in terms of particle spacing?

<p>There is more space between particles in a liquid (D)</p> Signup and view all the answers

What happens to the particles of a solid when it changes into a liquid?

<p>The packed particles loosen up and the solid melts into a liquid (C)</p> Signup and view all the answers

What happens to a liquid when it changes into a gas?

<p>The particles fly apart and become a gas (A)</p> Signup and view all the answers

What happens to water vapor in the air when it changes into tiny crystals of frost?

<p>The free-floating particles in the gas join together and form a solid (B)</p> Signup and view all the answers

What happens to the wax when you light a candle?

<p>The packed particles loosen up and the wax begins to melt into a liquid (D)</p> Signup and view all the answers

Which state of matter is always made of particles?

<p>All states of matter are always made of particles (B)</p> Signup and view all the answers

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