B, VERY SHORT-ANSWER QUESTIONS. Give one word answers
1. Name one natural material we get from trees
2. All matter takes up space. What is the name gyven to the meat of space that
3. What is the smallest partide of an element called?
4. What is the smallest particle of a compound called?
5. In the following list, circle the one which is not matter
air, water, pen, balloon, feelings, petrol
6. What is the grouping together of things with similar properties called?
7. Classification is done only for living things. True or false?
8. Silk cloth has
which cotton doth does not
9. Which state of matter can easily change its shape and volume?
10. Are all liquids miscible with water?
II. Name one gas which is soluble in water
of water, the solid will sink in water
Answers
Answer:
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Answer B.1: Wood is a natural material we get from trees.
answer 2 MATTER IS ANYTHING THAT HAS VOLUME AND MASS. ALL MATTER TAKES UP SPACE. THE AMOUNT OF SPACE TAKEN UP, OR OCCUPIED, BY AN OBJECT IS KNOWN AS THE OBJECT'S VOLUME.
answer 3 An atom is the smallest particle of an element that still has the properties of that element.
answer 4 The smallest particle of most compounds in living things is called a molecule.
answer 5 air, water, pen, balloon, feelings, petrol. In the list given above, feelings is not a matter. Feelings is an emotion.
answer 6 The grouping together of things with similar properties is known as classification
answer 7 false
answer 8 ️️️
answer 9 solid is the state in which matter maintains a fixed shape and volume. it can easily change its characteristics of shape and volume etc.
answer 10 For example, water and ethanol are miscible because they mix in all proportions. By contrast, substances are said to be immiscible if there are certain proportions in which the mixture does not form a solution. For one example, oil is not soluble in water, so these two solvents are immiscible
answer 11 CO2 is soluble because water molecules are attracted to these polar areas. The bond between carbon and oxygen is not as polar as the bond between hydrogen and oxygen, but it is polar enough that carbon dioxide can dissolve in water.
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