Which of the following is a non-porous material?

All materials are non-porous EXCEPT

Which of the following materials will SINK in the water?

What kind of materials enable the boats to float in water?

Which material will most likely undergo decay?

1. An objects shape can affect its ability to float, but some materials float no matter what thier shape is. Which is an example of this?

Decaying materials like leaves and fruit peelings can be made into ______________________.

This is a special property of solids to hold liquid to a certain extent.

Which of the following pictures is non-porous?

It is a state of matter that spreads out to takes up all available spaces in a container.

What is this picture all about?

What happen to some materials when pressed?

What is this picture all about?

What property of the material is changed when the material is heated?

Which of these materials are solid

What is this ?

What is this?

What action is this?

Thea is making bread. She is working the dough. She pushes and pulls the dough. Every time she does this the dough:

Thin metal can change shape if you push hard enough. This car has a bump. Another car bumped into it. the car ha a dent, it has changed__________.

Mike pulls on a rubber band. It stretches and gets longer. What happens when Mike stop pulling?

What happened to some solid materials when they were hammered?

It means force and shape into curve or angle.

It means dividing of object with the use of a sharp object like knife or pair of scissors.

It means applying pressure to flatten and shaped an object.

When an ice cube melts, it changes from:

What do we call the process in which a liquid changed into a gas?

Its molecules are very close together so it cannot change its shape

During melting, freezing and boiling, water changes from one state to another state. Heat needs to be supplied for which of these to take place?

It is the degree of hotness and coldness of a material.

It is the conversion of gas to liquid.

It is the conversion of liquid to solid.

It differs from temperature because it is the form of energy.

It is the ability of materials that allows something to be flattened without undertaking hot or cold substance.

The following are examples of physical change, except __________.

______ occurs when there is a presence of heat.

What change happens when solid materials heated?

Sun is the main source of ____________

It is a change of material from liquid to solid

It is a change of material from liquid to solid

What can you say about the temperature when the material was cooled?

A mixture in which its composition is the same throughout the mixture and it cannot easily be identified nor separated

Water and Sugar Mixture are what kind of mixture

Water and Oil Mixture are what kind of mixture

Refer to the picture shown. What kind of mixture is it?

Cornstarch and Baby powder

Baking Soda and Milk powder

Mongo and rice

pebbles and sand

Pepper and Salt

Heterogeneous or Homogeneous?

1. Burning of old tires

3. Smoke belching vehicles emit gases that cause change in the

composition of air. Which of the following is true about air pollution?

5. Which of the following should be practiced, to avoid the harmful effects

of change in materials to the air?

4. Household waste may change chemically that may cause harmful effects

to the environment. Which of the following is the harmful effect of improper

disposal of household waste?