Sci Reviewer:

MCQ

1.) Which of the ff. is an example of predation?
A. bee and flower
B. lion and tiger
C. spider and fish
D. jellyfish and algae

2.) Which of the ff. is NOT true when describing a food chain?
A. it contains producers, consumers, and decomposers only
B. producers are eaten by the consumers
C. primary consumers are eaten by other consumers
D. it contains detritivores, herbivores, and carnivores

3.) Nitrogen (N2) becomes a nitrate through the process of…
A. Nitrification
B. Nitrogen fixation
C. Ammonification
D. Denitrification

4.) Water from plants are released into the air through…
A. Transportation
B. Evaporation
C. Condensation
D. None of the above

5.) What is the pattern of temperature in the Earth’s atmosphere?
A. hot – cold –cold – hot
B. cold – hot – cold – cold
C. cold – hot – cold – hot
D. hot – hot – cold – hot

6.) Which part in the atmosphere is the ozone layer found?
A. Ozonosphere
B. Ionosphere
C. Heterosphere
D. Thermosphere

7.) Which instrument of weather measures the amount of precipitation?
A. Anenmometer
B. Hygrometer
C. Radiosonde
D. Rain gauge

8.) The process in which heat passes through empty space is called…
A. Radiation
B. Convection
C. Conduction
D. Subduction
9.) Which instrument of weather measures the amount of precipitation?
A. Anenmometer
B. Hygrometer
C. Radiosonde
D. Rain gauge

10.) What happens to the relative humidity when the temperature decreases?
A. the air mass will expand and will absorb more water vapor
B. the air mass’ particles will stick together and absorb more water vapor
C. the air mass will expand and will absorb less water vapor
D. the air mass’ particles will stick together and absorb less water vapor

Answer key :
1.) C
2.) A
3.) B
4.) D
5.) C
6.) A
7.) C
8.) A
9.) D
10.) D
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Classify each as a pure substance, element, homogeneous mixture, heterogeneous mixture.

1. Water
2. Rock and milk
3. Einsteinium
4. Salt
5. Coffee
6. Tea
7. Hot fudge sundae
8. Copper wires
9. Pokeball and water
10. Methane