Material Changes

Things that have square shapes are ...

• pyramids
• spheres
• cones
• cubes, dice, certain buildings

What are things that have triangle shape?

• Pyramids, traffic signs, musical instruments, food
• Stars
• Circles
• Squares

Shapes of objects/materials are ...

• determined by their weight
• determined by their color
• determined by their smell
• determined by their physical dimensions and structural characteristics

Things that have circular shape are ...

• Objects like a wheel, a coin, a clock, etc.
• Objects like a square, a triangle, a rectangle, etc.
• Objects like a cup, a plate, a spoon, etc.
• Objects like a book, a pen, a ruler, etc.

How can we change the shapes of objects/materials?

• By singing to them
• By using telekinesis
• By processes like cutting, molding, bending, stretching, or reshaping.
• By sending them to space

Bending, twisting, squashing, and stretching are the way of ... materials

• changing shape

• compressing
• expanding
• contracting

We can change the shape of clay by ... it

• molding
• cutting
• baking
• painting

Which are not the ways of changing materials' shape?

• Cutting, bending, and stretching
• Heating, cooling, and compressing
• Mixing, separating, and dissolving
• Melting, freezing, and boiling

If we bend the straw, it will turn into ...

• two separate pieces
• a fork
• a spoon
• three separate pieces

Heating and cooling are the ways of ... materials

• changing

• boiling
• melting
• freezing

Tags

NGSS.MS-PS1-4