Question

Matter is anything with (1)
and volume. A (2)
is a form of
matter with a uniform and unchanging composition. Substances have specific, unchanging
(3)
that can be observed. Substances have both physical and chemical properties.
properties colate observed without changing a substance's chemical
composition. Color, hardness, and (5)
are examples. Other properties cannot be
observed without changing the composition of a substance. These are called (6)
properties
An example is the tendency of iron to form rust when exposed to air.

Answer 1

Matter is found all around us and is present in all substances in the universe. Substances have a uniform composition and changes in this composition of of a substance is called chemical reaction.

The appropriate words that fill in the blanks are;

1) Mass

2) Substance

3) Properties

4) Physical

5) Density

6) Chemical

Matter has mass and occupy space. Matter with a uniform and unchanging composition is called a substance.

Substances have physical and chemical properties. The physical properties of a substance such as density can be observed without changing the composition of the substance.

Chemical properties of a substance such as rusting can only be observed when the chemical composition of the substance is altered(chemical reaction).

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