Activity 1

A watermill picks up 3500 l. of water per hour from the river. Another one picks up 6200 l. per hour.

How much more does one pick up one than the other?

Activity 2

Air generators in Murcia collect wind and turn it into electricity. If they collect 6520 Kw in one day, how many Kw will they collect in one month?

Activity 3

Thanks to the water and the sun a flower grew 3 cm in only one day. The following day, it grew up 2 cm more. How many centimetres did it grow after two days?