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11 Cards in this Set
- Front
- Back
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Scientific Method |
Process through which scientists try to explain a natural phenomena |
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Observations |
Gathering of information by watching something, by looking or using tools such as a microscope. |
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Hypothesis |
Based on observations and questions, a tentative explanation Is developed: (educated guess) |
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Prediction |
A statement about what you expect to occur if the hypothesis is accurate. (If/then statement) (Test the hypothesis. The Prediction is just what I think May happen) |
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5 step scientific method |
1 observations and questions 2 hypothesis 3 prediction 4 experiment testing 5 based on results hypothesis can be supports/ rejected/ modified |
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Positive Phototaxis |
An organism that moves toward a light source. |
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Negatively phototaxis |
An organism that moves away from light. |
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Explain Activity 2: Light at the end of the tunnel. |
Tested to see if the lady bugs/ insect are attracted to a light source, projected by a flashlight, or attracted to dark. Which was covered by a flash card. Collecting and connector tube are the control with no modifications. Independent variable: dark/light Dependent variable: the bugs attractions Controlled variables: tubes. bugs and time. |
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Chemotaxis |
An organism move towards or away from a chemical stimulus. |
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Explain Activity 3: Oh that smell! |
Testing to see if an insect I'd chemotaxis. (Move toward or away from a chemical stimulus) Used vinigar, clove oil and peppermint oil One tube had the chemical and the other had water. Independent: the chemicals used. Dependent: the ladybugs attraction Controlled: water, bugs, tube They are negitive chemotaxis |
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Explain Activity 4: Rrrraid!!! |
Testing to see if the bugs are chemotaxis. If they move away from insecticide or towards it. Independent variable: the chemicals used Dependent variable: the lady bugs attraction Controlled: water, tubes, bugs. Answer: they are negitively chemotaxis. |
