Science- Sorting Materials into Groups

What do you call a substance through which things are partially visible?

• Transparent

• Translucent

• Opaque

• Amorphous Solid

Vinegar dissolves in water

• True

• False

• It is impossible to even put vinegar

• Water does not dissolve things

An apple and a iron clip is put in water. Which of the objects will sink?

• The apple because it has more density than water

• The iron clip because it has less density than water

• The iron clip because it has more density than water

• None of the objects will sink

How can a material be called soft?

• Materials which can be compressed or scratched easily

• Materials which can turn into liquid to gas

• Materials which are difficult to compress

• Materials which provide comfort to everybody

Why do shopkeepers prefer to keep biscuits, sweets and other eatables in transparent containers?

• So everybody could smell the food

• It will get damaged if not placed in transparent containers

• So buyers can easily see the items

• So buyers can see light passing through it

Match the objects to the materials they are made of

• a-(i), b-(iv), c-(iii), d-(ii)

• a-(iii), b-(iv), c-(i), d-(ii)

• a-(i), b-(iv), c-(ii), d-(iii)

• a-(i), b-(iv), c-(iii), d-(ii)

Why does an object float or sink?

• It is because of opasity

• it is because of density

• It is because of gravitational force

• It is because of solubility

Group 1 contains eatables and Group 2 contains non-eatables. Group the objects to the correct group.(Water, basket ball, orange, sugar, globe, map, fish, tree)

• Group 1- Water, orange, sugar, globe, fish, tree Group 2- basket ball, map

• Group 1- Water, orange, sugar, fish

  Group 2- basket ball, map, tree

• Group 1- Water, orange, sugar, tree

  Group 2- basket ball, map,globe,fish

• Group 1- Basket ball, orange,sugar,water

  Group 2- Globe,Map,Fish,tree

Choose the materials which are opaque

• Wood

• Glass

• Butter Paper

• Iron

Which of these go to the same group by transparency to the object above?

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