Question

write an activity to show that matter consist of very small particles

Answer 1

Explanation:

There is a partial content match. The following presentation of Idea b shows which parts of the idea are treated (in bold) and what alternative vocabulary, if any, is used (in brackets): These particles are extremely small—far too small to see directly through a microscope. A few times, the Student Edition refers to the particles that matter is made of as tiny (for example, “All forms of matter are made up of tiny particles that are in constant motion” [p. 135s]). In two instances, it is stated that even the tiniest piece of matter contains a huge number of particles (pp. 135s, 138t). Also, in two instances, the text mentions that the particles that make up matter are too small to see, but does not clarify the statement further (pp. 135s, 157s). The component called Themes in Science asserts that under a microscope individual cells can be seen, and that with an electron microscope, scientists can see that living and nonliving matter is composed of very tiny particles (p. 135t). However, the text does not make clear that atoms and molecules cannot be seen with a light microscope (the kind with which students are familiar). The same component suggests that students should “describe a blueberry muffin from across the classroom, from two meters away, and using a hand lens” but does not suggest that (or how) teachers can link this activity to the composition of matter or the size of particles (p. 135t).

Answer 2

Answer:

Take 50 mL water in a beaker. Mark the level

of water in the beaker. Now, add some salt to

the beaker and stir well with the help of a

spoon. Observe the level of water now. Add

some more salt and repeat the above

procedure

It will be observed that salt disappears after

being added to water. However, there is no

change in the level of water in the beaker

This observation can be explained if we

assume that matter is made up of particles. A

chunk of salt consists of numerous salt

crystals. Each crystal of salt is made up of

many small salt particles. These particles

become dissociated from each other and

spread uniformly between the particles of

water. Thus, the level of water in the beaker

remains the same. These particles are so

small that we cannot see them with the naked

eye. Hence, it can be concluded that matter is

made up of particles i.e. matter is particulate

in nature.

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