Answer:
1) B
2) A
3) C
4) C
5) A
6) D
7) A
8) B
9) B
10) A
11) B
12) C
Explanation:
1) This shows that the rock occupies space as what we are looking at here is volume. (The displacement of water) Let's look at each of the options. It doesn't show that matter has mass because there is no mass balance or any equipment to show the heaviness of the rock. The state of matter (options C and D) is not shown here as any matter, which occupies space, when poured or added to an already filled glass will cause the water to spill. Option C says that matter is a solid, which is false as there are many different states of matter, such as solid, liquid and gaseous state. While a rock is a solid, the statement that matters are solid is false.
3) The term space is not commonly used in the study of science, we usually call it volume. This is because 'space' is quite a vague word as it could mean atmospheric space. More precisely, volume is the amount (or measure) of space a matter occupies.
4) Weighing scale measures the amount of mass (or weight) in a body. Options A and D are units of measurement for length while B is used for volume. Recap: volume is the amount of space an object occupies
5) Here, we are differentiating matter from non -matter
Properties that differentiate a matter from a non- matter are mass and volume. Matters have mass and occupies space (have volume).
6) I. Light is not a matter
II. All matter
III. Heat is not a matter. It is the measure of coldness or hotness in a body.
IV. All matter
9) Option C talks about diffusion.
10) An ion is a charged particle. For example, if an atom gains or loses an electron, it becomes negatively or positively charged and is now known as an ion.
A molecule is a group of atoms bonded together.
12) Atoms are very tiny so centimeters and millimeters would be too big of a unit for measuring them. Gram is a unit of measurement of mass.
<u>☆ Extra:</u>
Mass is the amount of substance in a body while weight is the amount of gravitational force acting on a body.
