Exploring the Particle Model of Matter

What gas is used to fill the balloons in the experiment?

• Helium

• Oxygen

• Carbon Dioxide

• Nitrogen

What happens to the balloons when they are placed in liquid nitrogen?

• Nothing happens

• They shrink

• They explode

• They expand

What state does carbon dioxide turn into after being exposed to liquid nitrogen?

• Liquid

• Gas

• Solid

• Plasma

What is the unique property of carbon dioxide demonstrated in the experiment?

• It changes directly from solid to gas

• It is invisible

• It becomes a liquid first

• It dissolves in water

What happens to the balloon as it warms up after being cooled?

• It bursts

• It changes color

• It inflates again

• It remains shrunk

What does the particle model of matter help to explain?

• The color of materials

• The temperature of objects

• The inflation and deflation of balloons

• The shape of objects

According to the video, what is inside a balloon?

• Billions of particles of matter

• Vacuum

• Air only

• Water vapor

Where can teachers find more science topics for grades three to five?

• wikipedia.org

• generationgenius.com

• sciencedaily.com

• nationalgeographic.com