To investigate the relative sizes of the planets in our solar system
To understand that size comparisons between planets can be surprisingly tricky.
This activity allows pupils to model, in three dimensions, the relative sizes of the planets.
the children will visualise the relative volumes of the eight planets and the dwarf planet Pluto in the
1. Divide the Entire Ball of Play-dough into 10 Equal Parts
You may find it easiest to start by rolling the ball into one big hot dog shape.
2. Cut the Remaining Part into 10 Equal Parts
3. Cut the Remaining Part into 4 Equal Parts
4. Cut the Remaining Part into 10 Equal Parts
5. Combine the Remaining 2 Parts and Cut into 10 Equal Parts
6. Cut the Remaining Part into 10 Equal Parts
7. Cut the Remaining Part into 10 Equal Parts
Now that you have divided the play-dough to represent the planets by volume, roll the pieces in each planet’s box into balls to best represent the shapes of the planets.