Uranus and Neptune are made primarily of hydrogen compounds, with smaller traces of hydrogen, helium, metal and rock. The most common hydrogen compounds are methane (CH4), ammonia (NH3), and water (H2O). The farther away a planet is from the Sun, the cooler its atmosphere will be.
Musical.ly is a popular app for creating 15-second music videos. How it works is kids select snippets of popular songs and record themselves singing, lip-syncing or dancing. Some kids skip the music and perform 15-second comedy skits.
What Parents & Kids Need to Know. Rated T for Teen. Musical.ly is rated T for teen on GooglePlay, â+12â on iTunes and âall agesâ on Amazon. Musical.ly says it restricts users to over 13 and teens, between 13 and 18, must have parental permission. When signing up, musical.ly does not ask users to enter a birthdate or age.