Universe

The most popular theory about the beginning of the universe is the .............................

• Pulsating universe theory

• Open universe theory

• Big bang theory

• Steady state theory

The first atoms to form after the big bang were................

• Hydrogen and Helium

• Hydrogen and Oxygen

• Oxygen and Nitrogen

• Helium and Nitrogen

Our galaxy, the galaxy we live in, is the first galaxy to ever exist.

• True

• False

The solar system belongs to a galaxy called ..........

• Whirlpool Galaxy

• Black Eye Galaxy

• Andromeda Galaxy

• Milky Way Galaxy

Planet Earth was created first before our galaxy was formed.

• True

• False

The solar system consists mainly of the Sun and the 8 planets.

• True

• False

The inner planets are ................... than the outer planets.

• smaller and higher in temperature

• smaller and lower in temperature

• bigger and higher in temperature

• bigger and lower in temperature

Jupiter, Saturn, Mars, Uranus and Neptune belongs to the outer planets.

• True

• False

Inner planets have no rings.

• True

• False

Scientists say that the universe is expanding continuously.

• True

• False