States of Matter and Gas Reactions

Jared introduces the concept of the three states of matter: solids, liquids, and gases. He explains that gases are invisible but crucial, with oxygen and nitrogen being the primary components of our atmosphere. To make gases visible, he demonstrates a reaction between baking soda and vinegar, producing carbon dioxide. This gas, heavier than air, can extinguish a flame by smothering it, showcasing its properties. The video concludes with an emphasis on the excitement and wonder of science.

What are the three states of matter discussed in the video?

• Solids, gases, and plasma

• Liquids, gases, and plasma

• Solids, liquids, and plasma

• Solids, liquids, and gases

Why can't we see the gases in the atmosphere?

• They are too far away

• They are clear

• They are too light

• They are too small

What percentage of the atmosphere is made up of oxygen?

• 20%

• 30%

• 10%

• 40%

Which gas is primarily beneficial to plants?

• Helium

• Carbon dioxide

• Oxygen

• Nitrogen

What two materials are used in the experiment to create a gas?

• Baking soda and water

• Baking soda and vinegar

• Vinegar and water

• Baking soda and lemon juice

What is the visible sign of the reaction between baking soda and vinegar?

• Sound of explosion

• Bubbling and foaming

• Temperature increase

• Color change

What gas is produced from the reaction of baking soda and vinegar?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

Why does carbon dioxide stay in the beaker during the experiment?

• It is sticky

• It is heavier than air

• It is the same weight as air

• It is lighter than air

How does carbon dioxide extinguish a flame?

• By cooling it down

• By smothering it and blocking oxygen

• By blowing it out

• By removing the fuel

What is the effect of carbon dioxide on a candle flame?

• It makes the flame brighter

• It changes the color of the flame

• It extinguishes the flame

• It makes the flame flicker