Some children do sweat more. If the child is found to be otherwise normal there is no need to worry.
activity you can do that calls for running and playing
It means plentiful or copious. To use it in a sentence you could say 'The athlete had been running for hours and was sweating profusely'
Water replaces the sweat you lose though sweating.
Wear two running shorts and it will not show through at all.
The water loss is due to sweating to cool the body.
Because you are sweating and it is basically since you are straining yourself
exercise is an activity requiring physical effort that one does. It can be playing sports, running, walking, sit-ups, etc.
water to hydrate yourself because you will be running around and sweating
After running two miles in the heat of the summer sun, Laurel was sweating profusely.
Firing as in starting and running, no.
Sweating help a runner because when a runner is running, their heart beat speeds up and warms the runner up. Sweating helps cool down the runner's body.
ion- think it would affect it in a couple of ways: Muscles use ions to do work and therefore need a delicate balance of sodium, potassium and calcium in order to function well. Any type of prolonged exercise would disrupt this balance. More obviously, sweat contains lots of ions. So, the more you exercise the more ions you lose through sweat.