1. 7th Grade – Inquiry and Engineering
Study Guide Review
7th Grade – Inquiry and Engineering

2. Ask a Question: Form a question based on observations.
Make observations/research: Make close qualitative and quantitative observations about the question you are asking.
Form a hypothesis: Create a testable, “If, then…” statement. This is a carefully designed prediction.
Test the hypothesis: The independent variable, dependent variable, control group, and experimental group should be defined during this step. An easy to follow, step by step experiment should be created prior to testing the hypothesis.
Analyze results: Now the data is graphed and organized. Look for any patterns in the data.
Draw conclusions: Based on the observations and data, is the hypothesis correct or incorrect and why is that the conclusion
Communicate results: Tell other scientists about the results.
Because you are only changing one variable, there is only one difference between the control group and the experimental group. If there are any differences at the end of the experiment, it is likely that it was caused by the variable.

3. Ask: Identify and research a need Imagine: Develop possible solutions
After analyzing the data from several experiments, a scientist can draw a conclusion. They decide whether the results prove that the experiment was correct or incorrect by looking at the data and the observations made during the experiment.
Ask: Identify and research a need
Imagine: Develop possible solutions
Plan: Make a prototype
Create: Test and evaluate; consider if the product is worth its benefit
Improve: Modify and retest the solution

4. Intended benefits: The positive purpose for which a technology is designed to be used.
Unintended consequences: uses or results that engineers do no purposely include in the design of products. An unintended consequence can be positive or negative.
Adaptive Bioengineering: a product or process that CHANGES living organisms or is specially made for an organism
Examples: racing wheelchair, genetically modified plants
Assistive Bioengineering: a product or process that helps living organisms reach their potential
Examples: crutches, normal wheelchair, hearing aids, automatic water sprinkling system

5. B D C

6. C B B

7. B D C

8. Eye protection
Open flame
Broken glass
Clothes protection
Hand safety
Wash hands
Sharp object
Chemical safety
Throw away items
Toxic

9. D E A H C G B F

10. Amount of sunlight
Plant growth rate
Plant type, soil, water amount, type of container
Vacuum brand
Amount of dirt sucked up
Carpet squares, same dirt
Cancer treatment
Amount of cancer killed
Starting cells number, saline solution, time exposed to medicine

11. Amount of carrots eaten
Change in vision
Vision test, time of day
Type of rose bush
Amount of roses grown
Greenhouse, water, soil, time
Amount of salt in water
Growth of plant
Type of plant, amount of water, soil, location

12. Humidity level
Tree growth
Type of tree, soil
Amount of water
Height of pea plants
Pea plant, soil, light

14. rise
peak
dropped
increased
fluctuated
1,500 tadpoles
600 tadpoles
declined