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Which are example of biodegradable wastes?

• Empty plastic bottles

• Empty cans

• Fruits and vegetables peelings

• Broken glass

The characteristic of matter that can be readily observed without changing its position is known as Chemical Property. True or false?

• True

• False

Pedro used few big boxes to plant tomatoes instead of many small pots. What are 5RS technique did he apply?

• Recycling

• Reducing

• Reusing

• Repairing

Which is true about chemical change?

• A new product is formed

• Chemical change as a result of physical change

• The product can be changed to its original form

• A chemical change is more important than any other process

Porous materials such as paper ang cloth can absorb liquid well. True or false?

• True

• False

It is the ability of a material to be bent without breaking.

• Brittleness

• Flexibility

• Conductivity

• Porosity

______________ is the ability of a material to be rigid and resist pressure that may cause deformation or change in its shape:

• Hardness

• Flexibility

• Malleability

• Porosity

The pressure or absence of oxygen in the materials may result in _______________.

• The burning of the materials

• The melting of the materials

• The change in the materials

• No change in the materials

Why is clay used for making pots and bricks?

• Malleability

• Immalleability

• Solubility

• Insollubility

It is the ability of a material to allow heat and electricity pass through

• Conductivity

• Malleability

• Porosity

• Hardness