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WorksheetsCh. 6 Bio
Total questions: 55
Worksheet time: 28mins
Name
Class
Date
1.
Center of an atom made up of protons and neutrons
a)
Electron
b)
Proton
c)
Neutron
d)
Nucleus
2.
Vertical columns on the periodic table are called
a)
Elements
b)
Groups
c)
Periods
d)
Atoms
3.
Negatively charged particles
a)
Atom
b)
Proton
c)
Neutron
d)
Electron
4.
The building blocks of matter
a)
Protons
b)
Elements
c)
Atoms
d)
Groups
5.
A pure substance that cannot be broken down into other substances by physical or chemical change
a)
Atoms
b)
Elements
c)
Neutrons
d)
Protons
6.
Particles that have no charge
a)
Protons
b)
Neutrons
c)
Electrons
d)
Necleus
7.
Horizontal rows on the periodic table are called
a)
Groups
b)
Periods
c)
Atoms
d)
Elements
8.
Positively charged particles
a)
Protons
b)
Neutrons
c)
Electrons
d)
Nucleus
9.
About how many elements are on the periodic table
a)
50-60
b)
60-70
c)
88-90
d)
Over 100
10.
How many of the elements on the Periodic Table occur naturally
a)
76
b)
83
c)
92
d)
105
11.
H2O
a)
Glucose
b)
Methane
c)
Sodium Chloride
d)
Water
12.
C6H12O6
a)
Glucose
b)
Methane
c)
Sodium Chloride
d)
Water
13.
NaCl
a)
Glucose
b)
Methane
c)
Sodium Chloride
d)
Water
14.
CH4
a)
Glucose
b)
Methane
c)
Sodium Chloride
d)
Water
15.
Atoms of the same element that have different numbers of neutrons
a)
Ion
b)
Isotope
c)
Molecule
d)
Compound
16.
An electrical attraction between two oppositely charged atoms or groups of atoms
a)
Chemical Bond
b)
Covalent Bond
c)
Ionic Bond
d)
Radioactive Isotope
17.
A pure substance formed when two or more different elements combine
a)
Bond
b)
Chemical Reaction
c)
Molecule
d)
Compound
18.
An atom that has lost or gained electrons
a)
Ion
b)
Isotope
c)
Molecule
d)
Bond
19.
This is formed when two or more elements combine
a)
Bond
b)
Chemical Bond
c)
Molecule
d)
Isotope
20.
The force that holds two atoms together
a)
Chemical Bond
b)
Chemical Reaction
c)
Covalent Bond
d)
Ionic Bond
21.
The process by which atoms or groups of atoms in substances are reorganized into different substances
a)
Chemical Bond
b)
Chemical Reaction
c)
Radioactive Isotope
d)
Molecule
22.
A chemical bond that forms when electrons are shared
a)
Chemical Bond
b)
Covalent Bond
c)
Ionic Bond
d)
Radioactive Isotope
23.
A compound in which the atoms are held together by covalent bonds
a)
Compound
b)
Ion
c)
Isotope
d)
Molecule
24.
An isotope that gives off radiation
a)
Chemical Bond
b)
Chemical Reaction
c)
Radioactive Isotope
d)
Isotope
25.
The result of a chemical reaction
a)
Product
b)
Reactant
c)
Enzyme
d)
Catalyst
26.
Number placed in front of a chemical symbol or chemical formula
a)
Chemical Equation
b)
Coefficients
c)
Products
d)
Subscripts
27.
A representation of chemical reaction that uses symbols to show the relationship between the reactants and products
a)
Chemical Equation
b)
Chemical Formula
c)
Substrates
d)
Subscripts
28.
Biological catalysts that speed up the rate of chemical reactions in biological processes
a)
Catalyst
b)
Enzyme
c)
Substrates
d)
Reactant
29.
The starting substances in a chemical reaction
a)
Chemical Formula
b)
Coefficients
c)
Product
d)
Reactant
30.
Reactants that bind to the enzyme
a)
Catalyst
b)
Enzyme
c)
Reactant
d)
Substrates
31.
A substance that lowers the activation energy needed to starts a chemical reaction
a)
Catalysts
b)
Enzymes
c)
Reactants
d)
Substrates
32.
A combination of chemical symbols and numbers to represent a substance
a)
Chemical Equation
b)
Chemical Formula
c)
Products
d)
Reactant
33.
Number at the lower right of a chemical symbol
a)
Catalyst
b)
Coefficients
c)
Products
d)
Subscripts
34.
Substances that release hydroxide ions when dissolved in water
a)
Acid
b)
Base
c)
pH
d)
Catalyst
35.
A measure of how acidic or basic a solution is
a)
Acid
b)
Base
c)
pH
d)
Atom
36.
Compound that forms hydrogen ions in solutions
a)
Acid
b)
Base
c)
pH
d)
Products
37.
pH Scale: Above 7
a)
Acid
b)
Base
c)
Neutral
38.
pH Scale: At 7
a)
Acid
b)
Base
c)
Neutral
39.
pH Scale: Below 7
a)
Acid
b)
Base
c)
Neutral
40.
Blood and paint is an example of this
a)
Colloid
b)
Mixture
c)
Solute
d)
Solvent
41.
A combination of two or more substances in which each substance retains its individual characteristics and properties
a)
Colloid
b)
Mixture
c)
Solution
d)
Solvent
42.
A heterogeneous mixture in which the particles do not settle out
a)
Colloid
b)
Mixture
c)
Solution
d)
Solute
43.
A mixture that is uniform throughout
a)
Heterogeneous
b)
Homogeneous
c)
Colloid
d)
Solvent
44.
Kool-aid mix is an example of this
a)
Heterogenous
b)
Homogeneous
c)
Solute
d)
Solvent
45.
A substance that is dissolved into a solvent
a)
Mixture
b)
Colloid
c)
Solute
d)
Solution
46.
Water is an example of this
a)
Solute
b)
Solution
c)
Solvent
d)
Mixture
47.
A solution in which another substance is dissolved
a)
Heterogeneous
b)
Homogeneous
c)
Solute
d)
Solvent
48.
Another name for a homogeneous mixture
a)
Colloid
b)
Mixture
c)
Solution
d)
Solvent
49.
A mixture that the components remain distinct
a)
Heterogeneous
b)
Homogeneous
c)
Mixture
d)
Colloid
50.
Large molecules formed from smaller repeating units of identical, or nearly identical, compounds linked by covalent bonds
a)
Disaccharide
b)
Polysaccharide
c)
Polymer
d)
Monosaccharide
51.
Two monosaccharides joined together such as sucrose
a)
Carbohydrates
b)
Disaccharide
c)
Macromolecule
d)
Monosaccharide
52.
Large molecule formed by joining smaller organic molecules together
a)
Disaccharide
b)
Macromolecule
c)
Monosaccharide
d)
Polysaccharide
53.
Simple sugars such as glucose and fructose
a)
Disaccharide
b)
Monosaccharide
c)
Polysaccharide
d)
Carbohydrates
54.
Organic compounds containing carbon, hydrogen, and oxygen in ratio of one oxygen and two hydrogen atoms for each carbon atom
a)
Carbohydrates
b)
Macromolecule
c)
Polymer
d)
Polysaccharide
55.
Three or more monosaccharides joined together such as glycogen
a)
Disaccharide
b)
Monosaccharide
c)
Polysaccharide
d)
Carbohydrates
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