How do scientists believe lightning forms? Be sure to use the terms: electric charge and electric field.
Why are we always told not to be the highest thing around when lightning strikes? Use what we have learned to explain why this is a bad idea!
• Why is planet Earth capable of sustaining life, but Mars is not?
• How is the Earth's magnetic field important to us? What would happen if it suddenly disappeared?
• Research and report what creates the magnetic field that surrounds our planet. Suggest reasons why Mars does not have a magnetic field. Please include a link to the article or site where you found your information.