Processing materials

State what can be made when clay is mixed along with grass?

• Plastic cup

• Wooden chair

• Clay bricks

• Glass

What is the purpose of this investigation where learners mix clay and grass to make clay bricks?

• For learners to make clay objects

• For learners to discover trail and error

• For learners to feel the texture of the mixture

State whether the following question is true or false.

To make clay bricks we need to mix clay and grass?

• True

• False

What materials are used to make concrete?

• Cement, air, water, sand and gravel

• Cement, air, water, sand, sunlight and gravel.

• Air water and sand

• Clay and water

Clay+ _______= Clay pots

What do you think the hypothesis of this investigation will be?

Where will you find all these household items to make dough?

• Grocery stores

• Clothing store

What will happen to the dough if the oil is not added?

• The play dough will harden and remain sticky

• The play dough will soften

• The play dough will hard and smooth

• The play dough will not bind together

Describe the properties of the mixture when a small amount of water is added to the dough mixture?

• The water cools down the texture of the material and allows it to process itself

• The water heats up and melts the playdough

• The water gets too cold and freezes the play dough

• The colour of the play dough changes.

What is the texture of the playdough after it has cooled?

• The texture of the playdough softens

• The texture of the playdough hardens