What is meant by living things and non-living things? Give any five differences between
living things and non-ling things.
2.
What are transparent, translucent and opaque materials? Give two examples for each of them.
3. Plastic is a material. This plastic can be used to make different kinds of objects. For
example- plastic can be used to make objects like ruler, tumbler, mug, bucket. Make a chart
of five materials and the different objects which can be made out of these materials.
(Hints : Copper, Glass, Iron, Paper etc. are materials)
4. Why is the moon considered as non-luminous object?
5. Differentiate between soluble and insoluble substances.
6. Those materials which allow electric current to pass through them are called conductors
whereas those materials which do not allow electric current to pass through them are called
insulators.
a) Give five examples of conductors and five examples for insulators.
b) Why do you think screw driver and pliers have plastic coverings on their handles?
7. Define the teams : a) Biodegradable substances.
b) Non-biodegradable substances.
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Answers
Answer:
living things are those things which have life.
non living things are those things which cannot and do not have life.
difference between both of them:-
1. Living things can move, but non-living things cannot.
2. Energy is required by living things, while non-livings do not require energy.
3. Living things are capable of growth, reproduction and death.
4. Non-living things are non-motile, but living things can move around.
5. Living things respire; non-living things do not respire.
2.Opaque objects do not allow light to pass through them.
Some examples are:
Card board piece, book etc.
Translucent objects allow light,to pass through them partially.
Some examples for translucent objects are:
Butter paper, ground glass, thin sheets of plastic etc.
transparent objects:-
the objects that allow light to pass through it are called transparent objects.
for ex:-glass tumbler and cellophane paper.
Explanation:
Answer:
(1) living organisms :-
1. The organisms which can breath.
2. The growth can be seen.
3. They are made up of living cells.
4. They require food air and water.
5. They excrete and get rid of waste materials from their body.
Non living beings:-
1. The organisms which cannot breath.
2.The growth cannot can be seen
3.They are not made up of living cells
4.They do not require food water and waste.
5.They do not excrete.
(2) Transparent:-the objects from which light can pass through it
Translucent:-the objects which adsorb some light and allow most of the light to pass through it . Sometimes the shapes are not recognized
Opaque objects:-the objects which do not allow the light to pass through it and blocks all the light .
(3) The objects are :-
Copper- spoon
Glass-Window
Iron--Keys
Paper-origami folding
(4)The moon is considered as non-luminous object because the surface cannot emit light because it is a heavenly body not star.Only Stars give light in space .Moon can reflect light which falls on it.
(5) Soluble substance :-
(a) The objects which can be dissolve in water are called soluble substance
(b)Examples- milk, sugar etc.
Insoluble substance:-
(a)The substance which can not be dissolve in water are called insoluble substance.
(b)Examples- oil, metals
(6)
(a)Examples of conductors- Copper, Iron, silver, gold,water
Examples of insulators- rubber, glass, oil, diamond, dry wood
(b)Screw driver and pliers have plastic coverings on their handles because if we do any work of electricity with screw drive, we can't get shock. when electricity flashes on the building the charge could not hurt anyone
(7)
(a) The substances that nature can recycle itself is called Biodegradable substances.
(b) The substances that nature can not recycle itself is called Non-biodegradable substances.
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