What causes black holes? ?, when a star dies, when a star melts, when stars implode, How are stars made?, An accumulation of gas and dust,, Humans make stars, Stars make them self, How do stars die?, Stars die because they because they get old, stars die because too much space junk hits stars, Stars die because they exhaust their nuclear fuel, How many stars are there in space ?, 20 billion stars in space, 200 billion trillion stars in the universe., 100 billion, What is the biggest star in space ?, 1, 2, 3, How many people have been to space ?, 533, 421, 685, Who discovered space?, Patty O, Edwin Hubble, Aida Bugg

Tauler de classificació

Actualment estem treballant per millorar la funcionalitat de la taula de classificació. Si us plau, ajudeu-nos oferint els vostres comentaris.

Envia suggeriments

Estil visual

Opcions

Actualment estem treballant per millorar la configuració de l'activitat. Si us plau, ajudeu-nos oferint el vostre feedback.

Envia suggeriments

Canvia de fonament

Restaurar desada automàtica: ?