Gummy Bear Lab
Goal:
Class Question: How big or small can you make your gummy bear?
Question:
How does ___________ (chosen solution) impact the volume, density, and mass of a gummy bear?
→Knowledge Probe
Negative control vs. positive control:
Negative control is when you do not expect any change.
Positive control is when a phenomenon is expected.
What would be your positive and negative controls in this situation?
Hypothesis:
If …..then….because.
Ask yourself:
1. Does the hypothesis connect to the question and prior knowledge?
2. Is the hypothesis and expected outcome?
3. Does the hypothesis describe the relationship between the independent and dependent
variables?
→Investigative Plan:
Using the guidance from your QPOE2 booklet, devise a plan to test your hypothesis. Make sure to
include:
1. Controls: positive and negative
2. Independent variable: 3 variations (high, medium, low). For example, you may use a 1 M
concentration of salt solution. High = 1M, medium = 0.5 M, and low = 0.1 M.
3. Is the investigation plan designed to be a fair test?
Research in progress poster
→Knowledge Probe
How to create a proper data table:
1. Using a ruler for a straight edge, draw a grid leaving enough spaces for the data.
2. At the top of the data table, write your title identifying the variables and what you are
measuring (effect of activity on heart rate)
3. Label column on the left with the independent variable or what will change (different
activities: running, yoga, walking....)
4. Label the columns to the right the dependent variables (the measurable effect resulting
from changing the independent variable). The dependent variable would be the number
of beats per minute for each activity. Remember to include enough space to record a
minimum of five trial measurements (beats per minute) for each activity as well as a
space to record the average beats per minute for that activity.
5. Collect data and record in the appropriate box.
6. Check data table for completeness or errors.
Observation:
Use the guidance from your QPOE2 booklet, to guide you in gathering and displaying your data. Make
sure to avoid opinions and prior knowledge. Make sure to construct a data table that clearly represents
your observations.
→Data Analysis:
How do you make sense of your data? What kind of graph will you use to best represent your
data?
Research in progress poster
Explanation:
› Claim:
the answer to my question
› Evidence:
data that supports my claim
› Reasoning:
Does my argument:
• tie in personal prior knowledge
• include that the investigation was a fair test
• connect to scientific concepts, principles or theories
• connect to ideas, evidence, and arguments of others
Evaluation:
How well did I do?
Use the step book to provide direction.
Present and Defend Poster