Science L3 Space and the solar system

Name the 4 larger planets

1 light year is equal to ________________ 9.5 trillion kilometers OR 9 million kilometers

What do we call a planet too small to be named a planet?

Which is the brightest planet ? Venus OR Jupiter

Which planet is closest to the sun? Mercury or Mars

So, when the temperature in this now forming solar system reaches 15 000 000 degrees Celsius, WHAT HAPPENS? Is it nuclear fusion OR an explosion

What is a star made of? Ice OR gas

What is "Conservation of Energy" when the nebula shrinks? Does it generate heat OR does it get rid of heat

What 2 forces eventually cause the solar system to form? Spin and gravity OR energy and gravity

What is a Nebula? A dense cloud of gas and dust OR a galaxy

Supernova.....what is this? What happens to form a supernova?

What is a protostar?

What happens when a star starts to die? Does it release gas OR does it run out of gas

What do stars produce? Gases and dust OR light and energy

Once the star has exploded, what happens next? Objects now spin and collide with each other OR objects join together to form a large rock like formation

Is it hot or cold in the solar nebula?

Name some of the parts of a solar system.

Name the 4 smallest planets

As the solar system now starts to form, which atoms collide with one another? Hydrogen atoms OR oxygen atoms

What is "Conservation of Angular Momentum" ? The nebula rotates faster OR slower

What is an asteroid? A ball of gas OR a small rock

What holds a star together?