Question

matching cause and effect
weathercasters watch for changes in the solar wind. solar wind affects different systems on earth in different ways. draw a line from each effect of solar wind on earth to its cause.
cause
electrons follow magnetic field lines and collide with molecules of gas in the atmosphere
changing magnetic fields generate electricity in wires.
the upper layer of the atmosphere is heated and expands.
effect
loss of power
loss of communication
increase in aurorae
explain your reasoning for each match. use evidence from the text to support your explanation. be prepared to compare elements and reasoning with a partner.

Explanation:

1. For "Electrons follow magnetic field lines and collide with molecules of gas in the atmosphere" → "Increase in aurorae": Auroras are formed when charged particles (like electrons) from solar wind interact with atmospheric gases, causing collisions that emit light.
2. For "Changing magnetic fields generate electricity in wires" → "Loss of power": Solar - wind - induced changing magnetic fields can induce electric currents in power lines, which may disrupt power systems, leading to power loss.
3. For "The upper layer of the atmosphere is heated and expands" → "Loss of communication": Expanded and disturbed upper atmosphere (ionosphere) can interfere with radio waves used for communication, causing communication loss.

Answer:

• "Electrons follow magnetic field lines and collide with molecules of gas in the atmosphere" matches with "Increase in aurorae".
• "Changing magnetic fields generate electricity in wires" matches with "Loss of power".
• "The upper layer of the atmosphere is heated and expands" matches with "Loss of communication".