Download Day_75_2016

Daily Directions
• Pick up the GREEN attachment from
the front counter
• Look over the Procedures and Data
Table on the attachment
• Complete your Hypothesis
o When you are set on your prediction, WRITE OVER
YOUR HYPOTHESIS IN PEN
o Research Question: What evidence will you use to
determine if a chemical reaction has occurred
when two or more substances are combined?
o Hypothesis: If I combine 2 or more substances, I will
know a chemical reaction has occurred by…
52
Chemical Reactions Lab
Research Question: What evidence will
you use to determine if a chemical
reaction has occurred when two or more
substances are combined?
Hypothesis: If I combine 2 or more
substances, I will know a chemical
reaction has occurred by…
Materials:
52
Chemical Reactions Lab
Research Question: What evidence will you use to determine
if a chemical reaction has occurred when two or more
substances are combined?
Hypothesis: If I combine 2 or more substances, I will know a
chemical reaction has occurred by…
Materials:
•
•
•
•
Variables:
Controlled:
•
•
•
•
Responding (Dependent):
Manipulated (Independent):
•
•
•
•
Chemical Reactions Lab
53
54
Chemical Reactions Lab
Conclusion:
Chemical Reactions Lab
53
52
Chemical Reactions Lab
Research Question: What evidence will allow you use to
determine if a chemical reaction has occurred when two or
more substances are combined?
Hypothesis: If I combine 2 or more substances, I will know a
chemical reaction has occurred by…
Materials:
• Test tubes (2)
• Permanent
marker
• Test tube rack
• Vinegar
• Graduated
cylinder
• Thermometer
• Calcium
chloride(B)
Variables:
Controlled:
Responding (Dependent):
Manipulated (Independent):
•
•
•
•
Plastic scoop
Baking soda (A)
Test tube brush
Lab sponge
Chemical Reactions