Summer Solstice
Imagine you're trying to angle your cell phone screen just right to avoid the glare from the overhead lights in your room. This is similar to how the Earth tilts during the Summer Solstice, allowing the North Pole to receive maximum sunlight. Just as adjusting your phone helps you see the screen clearly without glare, the Earth's tilt during the Summer Solstice maximizes sunlight exposure on the Northern Hemisphere, creating the longest day of the year.
Practice Version
Summer Solstice: A day in year when the North pole has its maximum tilt toward the Sun. Summer Solstice. It's the day when the Northern Hemisphere experiences the longest period of daylight.