Fill in the blanks.
1. A wool sock and a cotton shirt () against each other in a dryer.
2. Electrons move from the wool to the ().
3. Two pieces of clothing have () charges and they () each other.
1. A wool sock and a cotton shirt rub against each other in a dryer.
2. Electrons move from the wool to the cotton.
3. Two pieces of clothing have opposite charges and they attract each other.