Question 20
Rajiv is learning about scientific models.
He uses clay, a shell and white glue.
He presses the shell into the surface of the clay and carefully removes it.
This makes a mould.

He pours the white glue into the mould and leaves it to harden.
He removes the hard white glue from the mould.

**(b)** Rajiv made this model in one day.
Describe how Rajiv making his model is different to the real process.
He uses clay, a shell and white glue.
He presses the shell into the surface of the clay and carefully removes it.
This makes a mould.

He pours the white glue into the mould and leaves it to harden.
He removes the hard white glue from the mould.

**(b)** Rajiv made this model in one day.
Describe how Rajiv making his model is different to the real process.
