Grade 4

Which of the following materials float in water?

• big stone

• metal spoon

• empty plastic bottle

• crystal glass

wastes should be segregated into______ groups.

Which group of materials will undergo decay?

• fish bone, chicken feathers, kangkong stem, potato peeling, left over meat

• bottle of mineral water, glass, empty container of catsup, toyo/vinegar, broken pail, basin

• Empty can and empty bottles of soft drinks, milk, cereal drinks, sardines, corned beef, meat loaf

Which of the following materials have the ability to sink in water?

• metal spoon

• wood

• plastic sheet

• twings

How should non-decaying wastes be disposed?

• by composting

• reusing

• by recycling

• by composting,reusing and recycling