Q1W4 Science

Q1W4 Science

by Chatleen Til-adan

Multiple Choice

• Physical Change
• Chemical Change

Multiple Choice

• Physical Change
• Chemical Change

Multiple Choice

• Physical Change
• Chemical Change

Multiple Choice

• Physical Change
• Chemical Change

Multiple Choice

• Physical Change
• Chemical Change

Multiple Choice

• Physical Change
• Chemical Change

Multiple Choice

• Physical Change
• Chemical Change

Multiple Choice

• Physical Change
• Chemical Change

Multiple Choice

• Physical Change
• Chemical Change

Multiple Choice

• Physical Change
• Chemical Change

Multiple Select

Common examples are (2)___________ and (3)_________.

• combustion/

  burning

• rusting

• fuel

• heat

• rust

Multiple Select

Fire will continue its flame provided that there is continuous supply of

(4)_______, (5)_______, and (6)________.

• oxygen

• rusting

• fuel

• heat

• rust

Multiple Choice

In the absence of oxygen, there will be no (7)______ that will occur.

• oxygen

• fire

• fuel

• heat

• rust

Multiple Choice

An example of change in the material when oxygen is present is ________.

• oxygen

• fire

• fuel

• heat

• rusting

Multiple Choice

______ is formed when iron and oxygen react with water or air moisture.

• rust

• fire

• fuel

• heat

​Assessment

​

Multiple Select

1.What change will happen to the slices of potato if they will be exposed to oxygen in the air?

• Color will change from brown to white

• Color will change from white to brown

• The color will not change

• No changes in color

Multiple Select

2. What causes the rusting of iron nails or iron made materials in a wet cloth?

• presence of heat

• absence of heat

• presence of oxygen

• absence of oxygen

Multiple Select

3. When the candle was lighted, it melted into liquid and became solid again after few seconds or in a minute. What causes these changes?

I. presence of heat II. presence of oxygen

III. absence of heat IV. absence of oxygen

• I, II and III

• I and IV

• I and II

• All of the above

Multiple Choice

4.Why a slice of an apple acquires a brown colour if it is not consumed immediately?

• A slice of an apple acquires a brown colour if it is not consumed immediately due to the formation of new substances.

• A slice of an apple acquires a brown colour if it is not consumed immediately

Multiple Select

5. Which situation shows the presence of oxygen in a material?

I. Lighting of a candle III. Combustion of engines

II. burning of fuels IV. putting off a lighted candle

• I, II and III

• I and IV

• I and II

• All of the above

Multiple Select

6. Water is the primary cause of rust because water contains _____?

• Oxygen

• Chloride

• carbon

• hydrogen

Multiple Choice

7. What process is being shown in the picture?

• Combustion

• Oxidation

• Rusting

• Evaporation

Multiple Select

8. Joram noticed that when he mopped the floor using wet rugs, the moist in the floor disappeared after few minutes. What is the reason why the floor became dry?

• presence of heat

• absence of heat

• presence of water

• absence of temperature

Multiple Select

9. When physical change in materials happened, there is__________.

I. formation of new product or material

II. no formation of new product or material

III. formation of new shape

IV. formation of new color

• I, III and IV

• II only

• III and IV

• II and III

Multiple Select

10. Hannah observed that the left over foods on the table became watery, spoiled and had foul odor after 48 hours. What caused this change in the material?

I. presence of heat III. presence of oxygen

II. absence of heat IV. absence of oxygen

• I and II

• II and III

• I and III

• II and IV