The Universe is all​ (a)   . The universe is believed to be at least ​ (b)   in diameter; it has been expanding since its creation in the ​ (c)   about ​ (d)   .

​

• existing matter and space
• 10 billion light years
• Big Bang
• 13 billion years ago
• galaxies and black holes
• 5 million light years
• Milky Way
• 11 billion years ago

Assinala a frase verdadeira.

• Uma estrela é um corpo iluminado.

• Um planeta é um corpo luminoso.

• Uma estrela é um corpo que emite luz própria.

A figura representa uma constelação.

Uma constelação é um grupo de...

• planetas.

• estrelas.

• cometas.

• asteróides.

Which of the following is not a type of galaxy?

• Spiral galaxy

• Elliptical galaxy

• Irregular galaxy

• Planetary galaxy

Match the names to the definitions

• Frozen leftovers in space.

• 
• A group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure

• 
• An area in space with great gravity.

• 
• All existing matter and space.

• 
• A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction

• 

Label the types of galaxies.

• Elliptical Galaxy

• 
• Irregular Galaxy

• 
• Spiral Galaxy

• 

Seleciona todas as hipóteses corretas:

O Sistema Solar faz parte de uma galáxia que se chama

• Via Láctea

• Conjunto de Pandora

• Milky Way

• Whirlpool Galaxy

The Sun is the ​ (a)   at the center of the ​ (b)   . It is a hot ​ (c)   that gives off great amounts of​ (d)   . Life on Earth depends on ​ (e)   from the Sun.

• star
• solar system
• ball of gases
• energy
• light and heat
• light and electricity
• galaxy
• black hole
• ball of energy

Which three conditions define what a planet is?

• Must have a moon.

• Orbits the Sun.

• Must be a spherical shape.

• Must have an object free orbit.

Desloca os planetas para a sua categoria.

Groups:

(a) Planetas rochosos

,

(b) Planetas gasosos

• Vénus

• Neptuno

• Terra

• Mercúrio

• Urano

• Marte

• Saturno

• Júpiter