1. It is the amount of solute in a given mass of solvent expressed as gram solute per 100 grams of solution. *
Percent by volume
Percent by kilograms
Percent by mass
Percent by liter
2. A jewelry has a mass of 5.5 grams. How many grams of silver are in a jewelry containing 75% silver by mass? *
4.28 grams
5.28 grams
5.13 grams
4.13 grams
3. Concentration of solution depends on the amount of solute present in a given ____. *
solvent
solution
percentage
volume
4. It is a solution that contains a small amount of solute relative to solvent. *
Diluted
Concentrated
Mixed
Volume
5. Adding more solute to the solution will make it more ____. *
Diluted
Concentrated
Mixed
Volume
6. How do you call an optical instrument that is used to enlarge microscopic specimen such as microorganisms and cells? *
binocular
magnifying lens
microscope
telescope
7. Which of the following refers to the ability of the microscope to distinguish the distance between the two points of the specimen? *
resolution
magnification
par focal
revolution
8. Which of the following refers to the lowest level of biological organization and the basic unit of life? *
cell
tissue
organ
organ system
9. Asexual reproduction requires ___. *
only one parent to produce offspring
a combination of parents to produce offspring
two parents to produce offspring
two clones to produce offspring
10. Biotic factors are the ___. *
non-living parts of an ecosystem.
weather and climate.
living organisms in an ecosystem.
both a and b
11. You and your barkada travelled 60km to Tagaytay. If the travel to Tagaytay are travel. If the travel time was 2.5 hours. What was the average speed of your vehicle during the trip ? *
24 km /h
28 km/h
30 km/ h
32 km/ h
12. A sound wave is a _______. *
longitudinal wave
transverse wave
standing wave
shock wave
13. What is the speed of a sound wave with a distance of .78 meter between successive compression And a frequency of 440 Hz.? *
43 m/s
143 m/s
343 m/s
543 m /s
14. What type of rays would you expect to be used frequently at the hospital for medical diagnose *
gamma rays
microwaves
ultraviolet rays
X - rays
15. When a frying fan is touching a stove that is on, what heat transfer is happening? *
conduction
convection
radiation
insulation
16. These refers to the things, substance or object in the environment required by an organism for normal growth, maintenance, and reproduction. *
Energy
Ecosystem
Resources
Progression
17. Which among the following is an example of renewable resources? *
Gold
Coal
Fuel
Flora
18. Why Philippines is considered an archipelago? *
It is an island chain surrounded by bodies of water
Due to colonization in 16th century
It is formed by three big islands
Due to its plenty of rice plantations
19. In the Philippines Northeast monsoon comes mostly in October to February. It is also known as _____________. *
Amihan
Habagat
Typhoon
El Niño
20. This imaginary line is an angle that ranges from 0° at the Equator to 90° (North or South). *
Longitude
Latitude
Meridian
International Date Line
