WorksheetsCPSU _ Ge. Ed. _ Science
Total questions: 25
Worksheet time: 13mins
Which refers to the recorded observations and measurements in an explanation?
Conclusion
Data
Graph
Variables
Which summarizes a natural occurrence that may be constantly observed given the same conditions which may be expressed in words or in mathematical form?
Conclusion
Hypothesis
Law
Theory
Which of the following is NOT true about scientific method?
Conclusion is the last step
Scientific method may be applied in every life.
Scientific method is a systematic way of solving problem.
Scientific method is done by following a step-by-step procedure in an exact sequence.
Ryan prepares a solution by putting a pinch of orange crystals to water in a beaker, then by consistent stirring, the crystal dissolve. Which of the statements above are likely to be observed by Ryan?
I. The water becomes orange.
II. The color of the solution becomes darker.
III. Crystals disappear from the bottom of the beaker.
IV. The beaker and its contents become heavier as attiring continues.
I and II only
III and IV only
I, II, and III only
I, II, and IV only
How is the relationship described when both quantities are increasing but one quantity increases faster than the other.
Direct proportion
Direct square proportion
Inverse square proportion
Inverse proportion
In your attempt to determine which is denser oil or water, you mixed 25 ml of oil with 25ml of water. What helpful qualitative data can you derive from the set-up?
Oil on top of the water
Oil did not mix with the water
There are 50 ml of liquid in the container
There are 25 ml of water and 25 ml of oil in the container
Which can be classified as homogeneous mixture?
I. Buko pie
II. Blood
III. Virgin coconut oil
IV. Mango juice
III only
I and II only
I, III, and IV only
II,III and IV only
An odorless and colorless matter boils at 100℃ and melts at 0℃ What inference can be drawn from this observation?
It is a metal.
It is a mixture
It is a non-metal.
It is a pure substance.
A student dipped a strip of aluminum and a strip of iron in water. The student then exposed the strips to air for one week. Which was most likely observed one week later?
The iron strip formed rust.
The aluminum strip formed rust.
Both of the metal strips formed rust.
Neither of the metal formed rust.
How is hypothesis tested?
By making inferences
By conducting experiment
By formulating conclusion
By gathering enough information about the problem
What human activity has added the most carbon in the atmosphere?
Burning fossils fuels
Mining fossil fuel
Increasing soil erosion
Cutting down the rain forests
What will most likely occur if global warming will not be addressed?
Lower sea levels
Melting of ice cups
More pollution in water
More reflected sunlight off the ice pack
Why is it not advisable to drink soft drinks on an empty stomach?
It could lessen your appetite.
It could make you feel full faster.
It increases the acidity of your stomach.
It contains stimulant which causes dizziness.
Comparing the speed of sound in liquids , gases , and solids , the speed of sound is usually highest in __________ and lowest in _______.
gases , liquids
gases , solids
solids , gases
liquids , solids
Which of the following statement BEST explain how an acid rain occurs? Acid rain occurs when ____________.
carbon dioxide combines with water in the atmosphere
excess hydrogen is released into the atmosphere to produce acids.
phosphorus -rich water in lakes evaporates to form phosphoric acid
sulfur released in burning fossil fuels combines with water in the atmosphere
Why do we hear thunder some seconds after seeing lightning?
Light appears bright in the sky
Light travels faster than sound
Sound travels 1.331 m/s
Sound is released later actually
Air , food , and water are essential elements in human existence. Carried by the wind , polluted air called __________ falls to Earth poisoning fish and destroying vegetation.
Acid rain
El Niño
Greenhouse rain
La Niña
Which of the following statements represents a physical change?
An antacid tablet forms bubbles when dissolved in water.
A flashlight beam slowly gets dimmer and finally dies out over time.
The lawn grows thicker every day because fertilizers were added into the soil.
Frozen mango juice melted when left standing at room temperature for 30 minutes.
Three liquids A, B, C were studied in a laboratory. Liquid A was found to float over B and C. It was also found that liquid A flows fastest among the three. What can be said about liquid A?
Densest and most viscous
Densest and least viscous
Least dense and most viscous
Least dense and least viscous
The Earth's shield against the sun's harmful radiation?
air
atmosphere
ozone layer
clouds
Excessive presence of CO2 in the air trapping heat on the Earth's surface causing a rise in temperature in the environment.
El Niño
Pollution
Greenhouse effect
La Niña
What is the coolness after experiencing perspiration?
air entered the skin pores
evaporation of perspiration
absorption of perspiration
condensation of perspiration
Refers to the application of specific concepts and principles
Biology
Ecology
Technology
Science
Food preparation are handled well to avoid spoilage caused by____________ in the preparation and processing of the food products.
Miscalculation
bad weather
unsanitary conditions
mislabeling
The DOH warns the public about preservatives being used in vegetables. What advice could you give with regards to ensuring safe vegetables?
freeze the vegetables
wash the vegetables well with clean water
soak them with detergents
consume them immediately
