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WorksheetsScience4_Q1
Total questions: 65
Worksheet time: 33mins
These are materials that do not allow air or liquid to pass through.
(a)
Is hollow blocks porous or non-porous material?
(a)
Is cotton porous or non-porous material?
(a)
Is wood porous or non-porous material?
(a)
Is glass porous or non-porous material?
(a)
Is plastic container porous or non-porous material?
(a)
Is paper bag porous or non-porous material?
(a)
Is balloon porous or non-porous material?
(a)
Is roof sheet porous or non-porous material?
(a)
It is the amount of matter that an object has in certain space. It is related to the mass and volume of an object.
(a)
What do you call the ability of an object to float or rise when put into a liquid. Another factor related to the floating or sinking of an object?
(a)
It is the upward force exerted by a liquid, like water, on an object.
(a)
This means go to the bottom.
(a)
All materials sink in water.
true
false
maybe
not sure
This means to stay on top.
(a)
Some things sink very fast and some things sink very slowly.
true
false
maybe
not sure
Floating and sinking of objects depend on its sizes.
true
false
maybe
not sure
Floating and sinking of objects do not depend on its density.
true
false
maybe
not sure
Which statement is true?
When materials are denser than the water, it sinks.
When materials are denser than the water, it floats.
When materials are less dense than the water, it sinks.
When materials are less dense than the water, it will stay at the bottom of the water.
When materials are less dense than the water, it floats.
true
false
maybe
partly true, partly false
This is an object or substance capable of being decomposed by bacteria or other living organisms.
(a)
This is a material that can be defined as a kind of substance that cannot be broken down by natural organisms and acts as a source of pollution.
(a)
A material is decaying when it has molds, it has foul odor, it has worms, it has bubbles.
true
false
maybe
not sure
A material is decaying when it has molds.
true
false
maybe
i do not know
Materials when decayed undergo changes in:
Size, Shape, Texture, Color, Odor, and Taste
Size, Temperature, Texture, Color, Odor, and Taste
Size, Shape, Texture, Sound, Odor, and Taste
Size, Shape, Texture, Color, Composition, and Taste
What are the factors that contribute to the decaying process of materials?
Sunlight, Water and Microorganisms
Sunlight, Time and Location
Sunlight, Location and Microorganisms
Sunlight, Water and Time
As the temperature decreases, decomposers/microorganisms become more active and the rate of decay increases.
true
false
partly true only
maybe
What do you call a living thing that is so small, that you cannot see with a naked eye?
(a)
As the volume of available water increases, the rate of decomposition also increases.
true
false
maybe
partly false
It is the process of rotting through the increase in temperature, microorganisms, and water.
(a)
It is an illness that affects a person, an animal, or a plant. It is a condition that prevents the body or mind from working normally.
(a)
Decaying materials when not disposed of properly, cause pollution.
true
false
partly true
partly false
Population can greatly affect our health and safety.
true
false
maybe
sometimes
Spoiled food contains bacteria than can harm us.
true
false
sometimes
i do not know
We may still eat food that are expired but are still has good smell, looks good and looks safe.
true
false
sometimes
partly true
Material that has definite volume and shape.
(a)
Material that has definite volume and no definite shape.
(a)
Material that has no definite volume nor shape.
(a)
PHYSICAL CHANGE occurs when objects or substances undergo a change that does not change their chemical composition.
true
false
absolutely not
maybe
PHYSICAL CHANGE occurs when objects or substances undergo a change that change their chemical composition.
true
false
sometimes
precisely
A physical change is generally reversible.
true
false
sometimes
not sure
A physical change is generally irreversible.
true
false
maybe
not sure
This type of physical change means to force (an object, especially a long or thin one) from a straight form into a curved or angular one
(a)
This type of physical change means applying force or pressure to (something) to flatten or smoothen it; "the act of exerting a strong pressure.”
(a)
This type of physical change means an action of dividing an object by using a sharp-edged object like a knife or scissors
(a)
This type of physical change means an action using a hammer; action of hammering something
(a)
What do you call the hotness or coldness of an object?
(a)
What do you call the increasing temperature; may change from solid to liquid, liquid to gas, and solid to gas?
(a)
What do you call the decreasing temperature; may change gas to liquid, liquid to solid, and gas to solid?
(a)
The process from liquid to gas.
(a)
The process from gas to liquid.
(a)
The process from solid to liquid.
(a)
The process from liquid to solid.
(a)
This means the solidification phase change of a liquid.
(a)
The process from solid to gas.
(a)
This happens when a liquid material absorbs heat energy.
(a)
This is the process where water vapor becomes water.
(a)
This happens when a solid material absorbs heat energy and turns into a liquid form.
(a)
This happens when solid material absorbs heat but does not pass through the liquid phase, and rather becomes gas.
(a)
This happen when gaseous material cools down, does not pass through the liquid phase, and rather becomes solid.
(a)
What do you call the formation when you combine two or more materials together.
(a)
What do you think is the mixture of salt solution?
liquid and solid
solid and solid
liquid and liquid
gas and liquid
What kind of mixture is the halo-halo
solid and solid
solid and liquid
liquid and liquid
gas and liquid
What type of mixture is instant coffee drink?
solid and liquid
liquid and liquid
solid and solid
solid and gas
These are materials that absorb water, they have small holes that allow air or liquid to pass through.
(a)
