WorksheetsElements, Compounds & Mixtures
Total questions: 31
Worksheet time: 47mins
A sample of the element copper is broken down into the smallest possible particles that will still be considered copper. Each particle is this situation would be a(n) _________
molecule
atom
compound
mixture
What type of matter can be separated with physical change?
atom
element
compound
mixture
Which one of these is a compound
Chlorine (Cl) *can be found on the Periodic table*
Sodium Hypobromite (NaBrO4) *not on the periodic table*
Sand on the beach *not on the periodic table*
Iron (Fe) *can be found on the periodic table*
Sugar is added to a glass of water and stirred. Which observation is evidence that the sugar has dissolved?
The sugar crystals are no longer visible
The water changed colors
There was a temperature change when they were mixed
Bubbles formed in the water
The table above describes some properties of three substances. If they were mixed together, which options would be best to separate them?
*Note - The particles of all 3 substances are the same size*
Use a sifter to separate the yellow sulfur, then melt the salt because it has a lower melting point than metal
Put the mixture in a large bucket of water. The metal filings will sink, the salt will dissolve and the sulfur will explode
Create a chemical change that will change all of the substances in to new substances
Use a magnet to remove the metal filings, then dissolve the salt in water to separate it from the sulfur
Which one of the substances above is an element?
1
2
3
4
The above table shows minerals found in Earth's crust. Based on the information, which one is NOT a compound?
hematite
calcite
quartz
graphite
A scientist discovers a new substance. When he tried to break down the substance into simpler parts, he was unsuccessful when he tried to use a physical change to separate the components. Only when he created a chemical reaction, he was able to break down the substance into it's simpler components. What should the scientist classify the substance as?
compound
atom
homogeneous mixture
colloid
Which particle cannot be separated by physical or chemical means?
atom
molecule
solution
crystal
Click on every option that is an example of a pure substance? (Choose 3)
Water (H2O)
Lucky Charms cereal
Gold (Au)
Kool Aid
Sugar (C6H12O6)
Lucky Charms Cereal
Compound
Element
Mixture
Chocolate Chip Muffin
Compound
Element
Mixture
Which statement is true about compounds?
a pure substance where two or more elements are chemically combined
a homogenous mixture of 2 or more elements
a pure substance containing only one type of atom
a heterogeneous mixture of 2 or more elements chemically combined
What does this pic illustrate?
Element
Mixture of Compunds
Mixture of elemets
Compounds
What is this?
Element
Compound
Homogeneous Mixture
Heterogeneous MIxture
What is this?
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
What is this?
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
What is this?
Element
Compound
Heterogeneous MIxture
Homogeneous Mixture
Element
Compound
Homogeneous Mixture
Heterogeneous MIxture
What is it?
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
What is it?
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
What is it?
Pure Substance
Mixture
What is it?
Pure Substance
Mixture
What is it?
Pure Substance
Mixture
When there is 2 or more atoms combined together
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
How do you feel you understand the differences between pure substances and mixtures?
I know it well enough to explain it to someone
I can do this with help
I am very iffy
Huh?!?
