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WorksheetsScience Quizbee 4
Total questions: 30
Worksheet time: 15mins
Which of the following is considered a personal protective equipment (PPE) in a science laboratory?
Gloves
Notebook
Calculator
Pencil
What is the main difference between a solution and a suspension?
Solutions are always solid, suspensions are always liquid.
Solutions have particles that are evenly distributed, suspensions have particles that settle out.
Solutions are visible to the naked eye, suspensions are not.
Solutions can only be made with water, suspensions cannot.
Which of the following best describes the 10% energy rule in ecology?
10% of energy is lost at each trophic level.
10% of energy is transferred to the next trophic level.
10% of organisms survive at each level.
10% of sunlight is absorbed by plants.
Which of the following is an example of a fair test in a scientific experiment?
Changing multiple variables at once
Keeping all variables the same except one
Not recording results
Ignoring outliers
Milk is best classified as a ______.
colloid
solution
suspension
element
Which device prevents circuit overload by MELTING to break the circuit?
Battery
Switch
Fuse
Resistor
The agency that issues official weather warnings in the Philippines is ______.
PHIVOLCS
DENR
PAGASA
DOST
Which is a CHEMICAL change?
Frying an egg
Melting ice
Tearing paper
Boiling water
One complete REVOLUTION of Earth around the Sun takes about ______ days.
24
30
180
365
How long does it take to cover 750 m at 2.5 m/s?
200 s
250 s
300 s
350 s
Light travels ______ in glass than in air.
faster
slower
at the same speed
not at all
DIFFUSION is the movement of particles from ______.
low to high concentration
high to low concentration
solid to gas
liquid to solid
A rock of mass 135 g raises the water level in a cylinder from 45 mL to 95 mL. What is its density?
2.2 g/mL
2.5 g/mL
2.7 g/mL
3.0 g/mL
What is the MASS PERCENT of a solution made by dissolving 8 g of salt in 72 g of water?
8%
10%
12%
15%
From rest, an object accelerates at 2.5 m/s² for 8 s. The distance traveled is ______.
60 m
70 m
80 m
90 m
A 60-J bulb emits 3 J of light energy and the rest as heat. The light efficiency is ______.
2%
3%
5%
10%
In a FAIR TEST, controlled variables should be ______.
changed randomly
kept constant
measured only sometimes
ignored
Which PPE protects your EYES in the lab?
Lab coat
Face mask
Goggles
Gloves
During a THUNDERSTORM, the safest action is to ______.
use corded devices
stay indoors away from windows and plumbing
stand under tall trees
swim to cool off
A basic ‘GO BAG’ for typhoons/earthquakes should include ______.
open chemical bottles
food and water
fireworks
heavy textbooks
Milk is best classified as a _______.
solution
colloid
suspension
element
An object FLOATS in water when its density is ______ the density of water.
equal to
greater than
less than
the same as
In a SERIES circuit, the current through each component is ______.
the same
different
zero
doubled
To separate SAND from water, the BEST method is ______.
evaporation
filtration
distillation
condensation
Light travels ______ in glass than in air.
faster
slower
at the same speed
not at all
During the DAY, a SEA breeze blows from ______ because land heats faster.
land to sea
sea to land
north to south
east to west
The green pigment in chloroplasts that absorbs light is ______.
carotene
xanthophyll
chlorophyll
anthocyanin
Convert 36 km/h to m/s.
5 m/s
15 m/s
10 m/s
20 m/s
A wave has frequency 500 Hz and wavelength 0.68 m. Its speed is ______.
68 m/s
3400 m/s
500 m/s
340 m/s
During a THUNDERSTORM, the safest action is to ______.
stand under a tree
stay indoors away from windows and plumbing
use electronic devices
go outside to watch the storm
