attention
balling
boy
boys
children
club
danger
dangerous
direct sunlight
elementary school student
exercise
ground
healthy
heat
heat stroke
high temperature
hot
hot summer
hot weather
illustration
kid
male
outdoor
physical education
poor physical condition
practice
radiant heat
school
soccer
sports
summer
sun
sun rays
sunlight
sunny
sunstroke
sweat
training
uniforms
white back