G4 Earth and Space

Question 2

Payload,propelled,models,launch 1. When we………….. a rocket we send it up into space. 2. A rocket takes people and equipment into space.This is called the rockets’s……….. 3. Rockets are……………. upwards when hot gases shoots downwards. 4. People build…………… to see if their design ideas will work.

Answer 2

1. Launch 2. Payload 3. Propelled 4. Models

Question 3

Complete the follwing sentences. a. People use rockets to……. b. A rocket system gets its input of energy from……. c. A rocket must be light because…… d. When a rocket is launched we see fire and smoke because…… e. Sir Isaac Newton 3rd law of movement says for every push in one direction……..

Answer 3

a….. explore space, and visit the Moon. b….. fuel. c……to launch. The heavier it is the more difficult it is… And the more equipment it can take into space… d…..the fuel is burning… e…..there is an equal push in the other (direction).

Question 4

a. Neli blew up a balloon. she is holding the open end tightly closed, Neli lets the balloon go. Draw a picture of what happens. And arrows/notes… b. How is a rocket similar?

Answer 4

a…… b. Because it pushes gas/burning fuel downwards to propel itself upwards…. Explain Isaac Newton’s law here…