jovy17
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1. Matter is anything that occuples space and has mass. Which of the following is not matter?
a. water
b. stone
c. energy
d. empty box

2. Around us are different forms of matter. The air we breathe is an example of matter. Which of these statements incorrectly describes air?
a. It has mass.
b. It occuples space.
c. It is a pure substance.
d. It is a mixture of several gases pure substance

3. Elements and compounds are known as pure substances. Which of these statements correctly describes a compound?
a. It is made up of one type of element. b. It is the building block of all matter. c. It can be broken down into simpler components/ld. It cannot be broken down into simpler components

4. Silicon is a metalloid. Which of these statements does not describe it?
a. It occurs mostly in the elemental form. b. It is used in the electronics industry.
c. It is one of the most abundant elements on d. It occurs widely in the form of sand and silicates. on earth.

5. Elements such as calcium, oxygen and germanium are pure substances. They are classified as metals, nonmetals and metalloids. Which of these elements is a metal?
a. boron
b. copper
c. polonium
d. hydrogen

6. Matter can be grouped into three - elements, compounds and mixtures. Which of the following is a mixture?
a. wine
b. sugar
c. carbon dioxide
d. 100% silver coin

7. Mixtures are either homogeneous or heterogeneous. Homogeneous mixtures have a uniform composition Heterogeneous mixtures have components which are different from one another. All of these mixtures are heterogeneous except:
a. muddy water
b. bagoong isd
c. salt solution
d. newly milled rice

8. Mixtures can be grouped into homogeneous and heterogeneous mixtures. Each of the four choices given shows a pair consisting of a mixture and a classification. Which is the correct pair? a. concrete: heterogeneous mixture b. soll: homogeneous mixture
c. soft drink: heterogeneous mixture
d. milk shake: homogeneous mixture

9. In the absence of bleaching agents, rural folks use kamias extract for removing stains. Why?
a. Kamias is acidic.
b. Kamias tastes sour.
c. Kamias is widely used in Filipino homes.
d. Kamias and bleaching agents have similar components.

10. Ammonium sulfate, a fertilizer, decomposes to form two substances. What can you say about this information? a. Both products of decomposition are elements.
b. Ammonia is not an element.
c. One of the products is an element. d. Neither of the products can be an element.​

Sagot :

Answer:

1. LETTER C.

2. LETTER C.

3. LETTER A.

5. LETTER A.

6. LETTER B.

7. LETTER D.

8. LETTER A.

9. LETTER B.

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