Whether or not you have plenty of water where you live it is interesting to see how we use water in our homes.
Cape Town in the 2018 dry season has a serious water shortage and water is rationed to 50 litres per person per day, as shown in this poster.
The city rationed everyone to 87 litres a day and published this poster. Explain what the pictograph shows.
Draw a bar graph from this data.
Now the ration is 50 […]
These images are not shown to the same scale. An elephant is much bigger and heavier than a cat or a car. Can you arrange these things in order from lightest to heaviest? Can you estimate the mass of each of these things?
Can you find some objects that are about a metre long? How many hand-spans make a metre?
Make 1 metre length sticks using newspaper. Tightly roll 8 large sheets of newspaper, 4 and 4 placed as in […]
Pick two cogs. Place them close to each other so that the teeth fit into the gaps between the teeth of the other cog and as you rotate one it makes the other one rotate. What do you notice about the direction in which the cogs turn each time?