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WorksheetsUSEFUL and HARMFUL MATERIALS, PHYSICAL PROPERTIES
Total questions: 64
Worksheet time: 32mins
They are an excellent conductor of heat and electricity
Metal
Wood
Plastic
Glass
It is hard, and long lasting and these
qualities makes it an all-around material.
Metal
Wood
Textile
Plastic
This are materials that can ignite and burn easily.
Corrosive
Wood
Flammable
Toxic
A material known for its properties of strength and
impermeability.
Plastic
Glass
Metal
Wood
TRUE or FALSE: Pants is an example of textile
True
False
A useful material that is made of a large amount of silica from fine sand
combined with smaller amount of soda and lime.
Wood
Metal
Glass
Plastic
_________ materials are those that can easily catch fire at relatively low temperatures.
Flammable
Corrosive substances
Toxic Materials
Which group belongs to cleaning materials?
shampoo, soap, towel, body scrub
zonrox, muriatic acid, detergent powder, brush
soap, shampoo, body lotion, mouthwash, perfume
medicol, ibuprofen, antihistamine
Some household products are results from mixture between two or more substances. Which product can be classified as medicine?
medicol, neozep, ambroxol
insecticide, muriatic, detergent
shampoo, soap, lotion
beverage reagent, benedict’s reagent
Why does your mother keeps all the cleaning materials like muriatic acid, Lysol, laundry soup, dishwashing liquid in an area cannot be reached by your younger siblings?
These materials are expensive.
These materials are for adults only.
These materials are harmful
These can be used to treat diseases.
Bathroom cleaners can remove stains and dirt in our bathroom. Why do we need to be extra careful in handling this material ?
It can be broken.
It is expensive.
It contains acid that can damage our skin.
It can damage our bathroom.
Which of the following should be done to make rotten vegetables and fruit scraps became useful?
I. burn them
II. throw them away anywhere
III. put them in a compost pit to become fertilizer
IV. collect and process them for animals feeds
I only
I & II
III & IV
II & IV
Which of the following are useful materials?
plastic cup, ceramic plate, spoon and fork
insecticide, pesticide, fungicide
muriatic acid, stain remover, clog remover
gasoline, propane, hydrogen gas
Mr. Dela Cruz uses steel and cement to build his house.
Useful
Harmful
Which materials became harmful when not properly used?
TV, computer, air conditioner, radio
electric fan, bed, table and chairs
black board, color, paper, table
muriatic acid, stain remover, clog remover
When is a material useful?
When the material serves a purpose.
When the material brings hazards.
When the material brings harm.
When the material is toxic.
When is a material harmful?
When the material can be used many times.
When the material gives other uses aside from its purpose.
When the material can be used in cooking.
When the material brings danger to people and environment.
How much matter an object contains for it´s size
Mass
Density
Matter
Volumen
Which Naterial allows electricity to flow through theme?
Electrical insulator
Heat conductor
Electrical connductor
Heat Insulator
If an object don´t absorve the heat we say it is a great...
Heat conductor
Heat insulator
Miami Heats
Heat point
The temperature at which a substance changes state from liquid to a solid...
Density
Freezing point
Mass
Melting point
A material that allows heat to move through it easily...
Heat isolator
Solubility
Electrical conductor
Heat conductor
The temperature at which a substance changes state from solid to liquid is called?
Boiling point
Freezing point
Melting point
Sublimation point
Melting point is the temperatura at which a substance changes state from...
a liquid to a solid
a gas to a solid
a solid to a liquid
a liquid to a gas
Boiling point is the temperatura at which a substance changes state from...
a solid to a gas
a liquid to a gas
a gas to a solid
a liquid to a solid
when a liquid changes states into a gas
evaporation
condensation
density
solubility
how much one substance can dissolve into another substance
evaporation
volume
solubility
conductivity
when a gas cools and changes into a liquid
conductivity
evaporation
volume
condensation
the amount of matter in a certain amount of space
density
mass
matter
volume
A student mixes yellow powder with water. Which observation would prove a CHEMICAL change occurred?
The powder DISSOLVED in the water
The water turned the COLOR yellow
The bag's TEMPERATURE changed
The STATE OF MATTER changed
Which of the following options provides evidence of a CHEMICAL change?
Wood is burned releasing ash and smoke
Rocks separate when soil is sifted
Water turns to ice when you put it in the freezer
Salt dissolves in water
Which of the following examples provides evidence of a PHYSICAL change?
Wood is burned and releases ash and smoke
Iron rusts over time
When mixed, baking soda and vinegar form gas bubbles
A piece of paper changes shape when you rip it up
A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?
Physical change
Chemical change
No change
Which observations prove a chemical change has occurred?
Dissolving and expected color change
Mixing and dissolving
State of matter change and boiling water bubbles
Unexpected color change and temperature change
When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?
Physical change: state of matter
Chemical change: production of a solid
Physical change: freezing
Chemical change: rust
When iron is exposed to air over a long period of time, it forms rust. This is an example of what?
A new substance forming
Color change: no new substance
Shape change: no new substance
Burning: a new substance
A physical change...
Changes the physical properties of an object, but does not create a new substance.
Creates a new substance and cannot be undone.
A chemical change...
Changes the physical properties of an object, but does not create a new substance.
Creates a new substance and cannot be undone.
Which of the following is NOT an example of a physical change?
Crumpling paper
Sharpening a pencil
Clothes shrinking in the dryer
Milk turning sour
Which of the following is NOT an example of chemical change?
Milk turning sour
Burning wood
Breaking a pencil
Metal turning rusty
Jack leaves solid butter near a warm surface. When Jack returns, the butter has turned into a liquid. Jack's friend Elijah insists this is a chemical change. Is Elijah right?
no, because no new matter was formed
yes, because the matter changed states
no, because the butter didn’t have enough time to go through a chemical change
yes, because melted butter is a new type of matter
Imagine the substances below are combined. None of them dissolve and no new matter is created. What happened?
A physical change that is a solution.
A physical change that is a mixture.
A chemical change that is a mixture.
A chemical change that is a solution.
When combined, the powder and water create a solution because the powder dissolves evenly into the water. This is an example of a __________. If the water were evaporated from the solution, the powder would __________.
physical change ; have disappeared
physical change ; remain
chemical change ; be a new matter
chemical change ; remain
Fireworks can be many different colors. The color depends on the mix of chemicals inside the fireworks. When the different chemicals ignite, they each produce different colors. Which of the following is true about fireworks?
The fireworks’ color is caused by matter dissolving.
A chemical change causes the fireworks’ color.
Neither a physical nor a chemical change causes the fireworks’ color.
A physical change causes the fireworks’ color.
Which of these are most likely to cause a chemical change?
Check all that are true.
folding
rusting
cooking
burning
True or false?
Clues like color change, bubbles, and odors guarantee a chemical change has occurred.
False, these are all clues to only physical changes.
True, all are signs that a chemical change has definitely occurred.
False, some of these clues can be either physical or chemical changes.
False, no clues to chemical changes exist.
Which state of matter has a fixed shape and volume?
Liquid
Gas
Solid
Plasma
the ability to be rolled or pounded into various shapes
boiling point
thermal conductivity
malleability
melting point
the rate at which a substance transfers heat
boiling point
thermal conductivity
malleability
melting point
the ability to shine
electrical conductivity
solubility
luster
density
the ability of a substance to dissolve into another substance
electrical conductivity
solubility
luster
density
the ability to be stretched
elasticity
solubility
luster
density
the measure of how well an electric current can move through a substance
electrical conductivity
solubility
luster
density
THe property of a material that determines how fast or slow it will flow.
viscosity
extensive properties
reactivity
conductivity
a substance being dissolved in another substance
solubility
solute
solvent
sand
a substance in which other substance are dissolved
solubility
solute
solvent
sand
which of the ff materials is NOT highly soluble in water?
salt
coffee powder
food coloring
sand
The ability of an iron to react to oxygen to form rust is an example of
flammability
combustibility
reactivity
malleability
Products that are durable, lightweight, corrosion resistant, good insulator and waterproof.
styrofoam
metal
wood
plastic
Rubber is a flexible material that exhibits
elasticity
combustibility
reactivity
malleability
extremely versatile material with exceptional strength that is commonly used in making furnitures.
styrofoam
metal
wood
plastic
Which material is used to cover the exterior of the space shuttle?
ceramic
glass
plastic
wood
Which property depends on HOW MUCH matter is present?
conductivity
viscosity
luster
weight
Which property DOES NOT depend on HOW MUCH matter is present?
length
mass
volume
taste
