science 4

What kind of waste is a plastic wrapper of junk food?

• decaying waste          

• biodegradable waste

• non-biodegradable waste

• flammable material

Dina heated a chocolate bar to make it syrup. Which of the following

describes the changes happened in the chocolate?

• It changes in size and shape

• it changes in odor and color

• it changes in odor and texture

• it changes it size and color

. Wastes that are not properly disposed may___

• Become breeding places of pests such as mosquitoes and flies

• Cause loss of human soil

• Speed up the materials to decay

• Allow free flow of rain water run off

Draw Gloves

Why do some materials absorb water? Some materials absorb water because

materials_____

• are expensive

• have tiny holes that let the water get in

What should people do with garbage to prevent oneself form getting sick?

• Dispose waste material properly

• Take medicine

• Throw the waste materials anywhere in your surroundings

When you combine two or more materials, it is called _________.

• creamer

• homogeneous

• mixture

• heterogenous

The children mixed the milk powder and mongo seeds, the mixture that they combined was?

• mixture

• homogeneous

• solution          

• heterogenous

milk + flour is a ___________ mixture

What material repels  water?

• paper

• sponge                               

• metal