What do we need to grow a flower? - we need a seed.
What do we need to play football? - we need a ball.
What do we need to learn about computers? - we need a computer magazine
What do we need to go to the rain forest ? - we need a plane
What do we need to send a letter ? - we need a stamp
What do we need to take photos? - we need a camera
What do we need to climb down the cliffs? - we need a ropeladder
What do we need to design a space shuttle? - we need a computer
What do we need to make some pancakes ? -we need a frying pan
What do we need to get to the taiga ? - we need a plane
What do we need to go to the Moon ? - we need a spaceship