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WorksheetsUnit 1 Chemical Building Blocks Vocabulary
Total questions: 35
Worksheet time: 31mins
Select the best scientific meaning for volume.
The amount of space an object occupies or a container can hold.
The amount of surface area an object occupies or the flat space covered by an object.
The density of an object is it's volume plus the mass of the object.
Select the best answer. What is an atom?
The physical changes and ways matter change from one form into another form.
The building blocks of matter. Protons, electrons and neutrons.
Combinations of molecules, mixed together to form compounds.
Select the best definition of liquid.
Matter that has definite shape and occupies volume. Molecules are fixed and ridged forming a definite shape.
Matter that has no shape and takes up the volume of it's container. Molecules are moving fast and are very far apart when compared to the other phases of matter.
Matter that has volume but no shape. Matter that takes the shape of it's container. Molecules are fluid like and found farther apart than a solid and closer together than a gas.
A group of atoms that are chemically bonded together form a
molecule or compound.
mixture or solution.
element or atom.
Sodium chloride (NaCl) is an example of a
compound or molecule
element or atom
homogenous mixture
Select the best answer. These are some of the physical properties of matter.
texture, color, mass, volume, melting point, boiling point. Characteristics can be observed.
rust, reactivity, oxidation, flammability. Characteristics can be observed.
elements, atoms, compounds, mixtures. Characteristics can be observed.
A change in a substance that does not change the identity of the substance is known as this form of change.
Physical Change
Molecular Change
Chemical Change
When a substance changes from a solid into a gas.
Conduction
Sublimation
Convection
What is a solution?
A solution is formed when one substance is dissolved in another substance. A solution is a mixture.
A solution is formed when one substance changes into another substance and no new substances are formed. A mixture is not a solution.
Thermal energy can be measured by using this tool.
meter stick
electronic scale
thermometer.
These elements are considered to be the metalloids. The have both the properties of metals and nonmetals.
Boron, Silicon, Germanium
Oxygen, Nitrogen, Carbon
Florine, Barium, Sodium
The alkali metals and alkali earth metals are found in these groups on the Periodic Table of Elements.
Groups 1 and 2
Groups 2 and 4
Groups 16 and 17
The atomic number of an element represents the number of an element's . . . . . .
mass and weight.
neutrons.
protons and electrons
Mass and weight are the same.
true
false
Weight is actually a measurement of the gravitational pull that one object has on another object as measured by a scale or balance.
true
false
Check your answer. Select the best definition of a gas.
Matter that has definite shape and occupies volume. Molecules are fixed and ridged forming a definite shape.
Matter that has no shape and takes up the volume of it's container. Molecules are moving fast and are very far apart when compared to the other phases of matter.
Matter that has volume but no shape. Matter that takes the shape of it's container. Molecules are fluid like and found farther apart than a solid and closer together than a gas.
Check your answer. Select the best definition of a solid.
Matter that has definite shape and occupies volume. Molecules are fixed and ridged forming a definite shape.
Matter that has no shape and takes up the volume of it's container. Molecules are moving fast and are very far apart when compared to the other phases of matter.
Matter that has volume but no shape. Matter that takes the shape of it's container. Molecules are fluid like and found farther apart than a solid and closer together than a gas.
What is The Periodic Table of Elements?
A list of elements based on the alphabetical order of all the elements known to humans.
A organized group of atoms bonded together to form a molecule.
An organized grouping of elements, based on their atomic number and atomic mass. Elements having similar properties are found in the same groups.
Select the best answer, only one answer is correct. When water changes from ice to water this is known as what type of change?
chemical change or chemical property.
physical change or phase change.
physical property or chemical change.
A sample of matter, either a single element or a
single compound, that has definite chemical and
physical properties is known as a
Lucky Charms
Heterogenous Mixture
Pure substance
A group of atoms bonded together is known as a
protons and neutrons
atom or neutrons
molecule or compound
A substance that cannot be broken down into
simpler substances is known as a(n)
homogeneous or heterogenous mixture
element or atom
molecule or compound
Select the best answer. We have a substance that is a liquid at room temperature and a solid at 0 degrees Celsius. When the object is heated to 100 degrees Celsius it turns into a gas. The substance is known as water. This is an example of what type of change?
physical change - no new substance is formed the identity of the substance remains the same only the phase has changed.
chemical change - a new substance is formed when the liquid turns into a gas and moves into the atmosphere.
Atomic Mass / Atomic Weight
The average mass of all the isotopes of an
element. Represents the mass or average mass
of the atom and all of its isotopes.
The number of protons in the nucleus of an
atom. Also, it equals the number of electrons in
the electron cloud surrounding the nucleus of
the atom.
What does a chemical formula show us
Symbols that show the atoms in a compound
and the number of neutrons in the atoms.
Symbols that show the elements in a compound
and the ratio of atoms (H2O).
Symbols that show the elements in a compound
and the atomic mass of each element.
Compounds are different from atoms and elements because
they are two or more elements chemically combined.
they are single elements combined to form pure substances.
they are always three or more elements chemically combined.
How many elements are considered to be metalloids?
There are six shown on The Periodic Table of Elements.
There are ten shown on The Periodic Table of Elements.
There are one-hundred shown on The Periodic Table of Elements.
Elements are also ______!!!
Shiny and Hard
Compounds
Atoms
Molecules can be many of the same atoms or different atoms combined together.
True
False
A (a) is always considered to be a molecule.
The valence electrons are the electrons that cause ________ _________!
physical reactions
chemical reactions
yelling and screaming
The Atomic Number of an Element represents these...................
electrons
protons and electrons
electrons and neutrons
These particles found in an atom are located in the ..............
Nucleus
Valence Clouds
Electron Cloud
What is a good definition for physical properties of matter?
Matter that is physical
Anything that describes matter
Anything that describes energy
These are physical properties of water.
Boiling point 100 degrees C
Freezing Point 0 degrees C
Melting Point
Liquid
Combustion
Tarnishing
Shinny
Hard
No odor
