Gr. 6 Science
Name __________________
Class ________
Chemical Reactions – Endothermic and Exothermic
When the temperature of a chemical reaction decreases, the reaction is called an
endothermic reaction (more thermal energy is leaving the solution and going into the
breaking of chemical bonds). When the temperature of a chemical reaction increases,
the reaction is called an exothermic reaction (more thermal energy is being released
by chemical bonds that are being broken).
Today you will these 2 chemical reactions:
1. Baking soda solution and calcium chloride reaction
 Measure 10 ml of baking soda solution (liquid)
 Record its starting temperature
 Add 3 spatulas of calcium chloride to the baking soda solution (liquid)
 Record its maximum finishing temperature
2. Vinegar and Baking soda reaction
 Measure 10 ml of vinegar
 Record its starting temperature
 Add 3 spatulas of baking soda powder to the vinegar
 Record its maximum finishing temperature.
Data Table:
Title ____________________________________________
Graph: Attach graph to this sheet.
DID YOU INCLUDE ALL THE PARTS OF THE GRAPH
DESCRIBED ON THE RUBRIC?
Conclusion:
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Standard
Beginning
Approaching
Meeting
Science and
Engineering
Practices:
Planning and
Carrying Out
Investigations
Incompletely or
inaccurately records
and graphs data in a
systematic approach
(graph includes title,
labeled axes, units
on axes, consistent
scale, neat)
Partially records
and graphs data in
a systematic
approach (graph
includes title,
labeled axes, units
on axes, consistent
scale, neat).
Records and graphs
data in a systematic
approach. (graph
includes title,
labeled axes, units
on axes, consistent
scale, neat).
Learning
Behaviors:
Active Learning
and Effort
Does not put forth
time and effort to
provide a conclusion
to the data that
includes a scientific
explanation..
Partially puts forth
time and effort to
provide a
conclusion to the
data that includes
a scientific
explanation.
Puts forth time and
effort to provide a
conclusion to the
data that includes a
scientific
explanation.
Exceeding
Puts forth time and
an extended effort to
provide a conclusion
to the data that
includes a scientific
explanation.