Understanding Lightning and Static Electricity

What causes lightning to occur in storm clouds?

• The movement of tectonic plates

• The reflection of sunlight

• The presence of strong winds

• The collision of ice crystals and water droplets

Which type of lightning occurs within a single cloud?

• Cloud-to-ground

• Cloud-to-cloud

• Ground-to-cloud

• Intra-cloud

What is the cause of the sound known as thunder?

• The collision of clouds

• The reflection of sound waves

• The rapid expansion of heated air

• The movement of rain

In the STEM activity, what is used to create static electricity?

• A plastic comb

• A glass rod

• A wool cloth

• A metal spoon

What is the final step in the STEM activity to observe a lightning effect?

• Rubbing the balloon on a glass surface

• Holding the balloon close to the spoon

• Turning on the lights

• Touching the balloon to the spoon