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WorksheetsCh. 15 Classifications of Matter
Total questions: 28
Worksheet time: 7hrs 0mins
What are substances?
Type of matter with fixed composition
Atoms in a substance with the same identity
Matter with two or more elements combine in a fixed portion
Mixture in which materials can be distinguished
Substances can either be
element
compound
heterogenous
homogenous
What are some substances?
Water
Helium
Chalk
Salts
How many elements were found on Earth?
90
20
Is copper an element?
Yes
No
What are compounds?
Type of matter with fixed composition
Atoms in a substance with the same identity
Matter with two or more elements combine in a fixed portion
Mixture in which materials can be distinguished
What is water made of?
2 hydrogen atoms
1 oxygen atom
1 hydrogen atoms
2 oxygen atom
What is a mixture?
Material made up of two or more substances that can be easily separated by physical means
Mixture in which different materials can be easily distinguished
Mixture of two or more gases liquids and solids substances blended evenly throughout
Type of mixture with particles that are larger than those in solution but no heavy enough to settle out
Scattering of light in a colloid solution
What are some examples of mixtures?
trail mix
soda
sand
cereal
What is a homogeneous mixture?
Material made up of two or more substances that can be easily separated by physical means
Mixture in which different materials can be easily distinguished
Mixture of two or more gases liquids and solids substances blended evenly throughout
Type of mixture with particles that are larger than those in solution but no heavy enough to settle out
Scattering of light in a colloid solution
Heterogenous mixtures have different substance proportions
True
False
What are some examples of heterogenous mixtures?
trail mix
gravel
sand
cookie
What is an example of homogenous mixtures?
trail mix
strawberry and bannana shake
sand
pizza
particles so small they will nerver settle
solution
colloid
homogenous mixture
heterogenous mixture
sollution particles are larger than those in a colloid
true
false
milk is a
colloid
suspensions
solution
homogenous mixture
What is the Tyndall effect?
Material made up of two or more substances that can be easily separated by physical means
Mixture in which different materials can be easily distinguished
Mixture of two or more gases liquids and solids substances blended evenly throughout
Type of mixture with particles that are larger than those in solution but no heavy enough to settle out
Scattering of light in a colloid solution
Waht does the tyndall effect determine?
if a solution is colloidal
if a solution if a suspension
the density of a solution
if a solution can undergo a physical change
What is a suspension?
Material made up of two or more substances that can be easily separated by physical means
Mixture in which different materials can be easily distinguished
Mixture of two or more gases liquids and solids substances blended evenly throughout
Type of mixture with particles that are larger than those in solution but no heavy enough to settle out
heterogenous mixture with visible particles that settle
Any characteristic of a material that can be observed without changing the identity of the substance that makes up the material
Physical property
Physical change
Chemical property
Chemical change
How can physical properties be used to separated substances?
color
magnetism
flammability
texture
Change in size shape or state of matter
Physical property
Physical change
Chemical property
Chemical change
Separating substances in a mixture by evaporating a liquid and recondensing its vapor
Physical property
Distilation
Chemical property
Chemical change
How does distillation occur?
mixture is boilled then vapor is recondensed and collected
mixture is melted then vapor is recondesnsed and collected
mixture is frozen the vapor is recondensed and collected
compound is boiled the vapor is recondensd and collected
characteristic of a substance that indicates whether it can undergo a chemical change
Physical property
Physical change
Chemical property
Chemical change
Change of one substance to another
Physical property
Physical change
Chemical property
Chemical change
How can substances be separated by chemical change?
chemical reversal
industry
labs
chemical colloidal
What is the law of conservation of mass?
The mass of all substances that are present before a chemical change equals the mass of all substances that remain after the change
substance that indicates whether it can undergo a chemical change
Substance in which atoms in two or more elements combine in a fixed portion
Mixture in which different materials can be easily distinguished
