Science 4-Quarter 1-WEEK 7

1. Burning of old tires

2. Smoke belching vehicles

3. Recycling plastic bottles

4. Making compost pit

5. dumping garbage on the street corner

6. Using eco bag when buying groceries

1. Change in the size or shape of objects is called _________.

2. Waste from factories that reach bodies of water causes change in the

water environment. Arrange the harmful effects in their proper sequence.

I. Fish die

II. Change in the smell of water

III. Change in the color of water

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

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

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?

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

of change in materials to the air?