Worksheets7th Grade Q2 Exam Review
Total questions: 20
Worksheet time: 10mins
Anything that has mass and volume is called?
Pure Substance
Molecule
Matter
Atom
Matter has two types of mixtures: homogenous and heterogenous. What type of mixture does the image display?
Homogenous Mixture
Heterogenous Mixture
True or False. A homogeneous mixture has substances that are so evenly mixed that you can’t see the different parts.
True
False
True or False. An example of a homogeneous mixture are coffee, guacamole, and soy sauce.
True
False
True or False. A heterogeneous mixture is made up of particles that you CAN’T usually see and they can easily be separated.
True
False
True or False. An example of a heterogeneous mixture is are salad, trail mix, and cereal.
True
False
True or False. A mixture is two or more substances NOT chemically combined.
True
False
An atom is the basic particle in which all elements are made. A group of two or more atoms held together by chemical bonds is called a ________________ .
Pure Substance
Molecule
Matter
Atom
A solution is a mixture containing a solvent and at least one solute, and it has the same properties throughout. In the image, label A indicates the ______________ .
Solution
Solvent
Solute
In a chemical equation, the number that tell us the amount of molecules present is called a ____________.
Coefficient
Subscript
The number in a chemical equation that tell us how many atoms or ions there are within a compound is called a ____________.
Coefficient
Subscript
How many elements are in 3CCl4?
Four
Three
Two
One
How many atoms are there per element in 2H2O2?
H= 4, O= 2
H=4, O= 4
H= 2, O= 2
How many atoms per element are in 5(NH4)3 PO4? Note: the 3 is a subscript of the parentheses.
N= 5, H= 5, P= 5, O= 20
N= 5, H= 5, P= 5, O= 4
N= 15, H= 60, P= 5, O= 20
Identify the missing sections of the weathering process in chronological order.
Igneous Rock (Intrusive), Igneous Rock (Extrusive), Sedimentary Rock, Weathering, Metamorphic Rocks
Weathering, Sedimentary Rocks, Metamorphic Rocks, Igneous Rocks (Intrusive), Igneous Rocks (Extrusive)
Igneous Rock (Extrusive), Igneous Rock (Intrusive), Metamorphic Rocks, Sedimentary Rocks, Weathering
Choose the answer that has an example of each of the three types of rocks.
Granite, Limestone, Sandstone
Granite, Obsidian, Marble
Granite, Limestone, Marble
How are Sedimentary Rocks are formed?
By weathering of other rock.
Heat & pressure deep underground.
Extreme heat, melted rock.
What is an interesting fact of a Metamorphic Rock?
In Latin it means "Fire"; often has crystals.
Where fossils are found.
Used to make blackboards.
What is a unique characteristic of Igneous Rocks?
Forms bands and layers.
Formed when magma and lava cool.
Made by weathering of other rocks.
What is the most common rock found on Guam, and in what area of Guam is it abundantly formed?
Limestone- Northern half of Guam.
Pumice- Southern half of Guam.
Gneiss- Central portion of Guam.
