Question

1. (dependent, independent, constant, control, etc.) 2. differentiate between observation and an inference. draw a picture illustrating the difference. 3. describe what the acronym conptt means. explain each letter. 4. differentiate between qualitative and quantitative data and provide an example of each. 5. a gardener noticed that dandelions grow as unwanted weeds in many lawns. he thought that a weed killer that he heard advertised on tv, killimal, would kill dandelions while leaving grass healthy. he staked out two identical sections of lawn that had roughly the same density of dandelions and received the same amount of sunlight. he applied killimal to one section and did not spray the other section with killimal. he watered each of the plots with the same amount of water. what was the gardeners: a. initial observation_ b. hypothesis _ c. independent variable _ d dependent variable _ e. control variables (3) _ f. control group _ g. experimental group _

Explanation:

1. Initial Observation: The gardener saw dandelions as unwanted weeds in many lawns.
2. Hypothesis: The weed - killer Killimal would kill dandelions while keeping grass healthy.
3. Independent Variable: The application of Killimal (applied or not applied).
4. Dependent Variable: The survival of dandelions and health of grass.
5. Control Variables: Density of dandelions, amount of sunlight, amount of water.
6. Control Group: The section of lawn without Killimal spray.
7. Experimental Group: The section of lawn with Killimal spray.

Observation is gathering information using senses. Inference is a conclusion based on observations. For example, observing a wet sidewalk (observation) and inferring it rained (inference). Qualitative data is non - numerical, like the color of flowers. Quantitative data is numerical, like the number of flowers. As for CONPTT, without prior context, it's hard to say. But in a science experiment context, it might refer to concepts like control, observation, etc.

Answer:

1. A. Dandelions grow as unwanted weeds in many lawns.
2. B. Killimal would kill dandelions while leaving grass healthy.
3. C. Application of Killimal.
4. D. Survival of dandelions and health of grass.
5. E. Density of dandelions, amount of sunlight, amount of water.
6. F. The section of lawn without Killimal spray.
7. G. The section of lawn with Killimal spray.
8. Observation is direct sensory information gathering. Inference is a conclusion from observations. A picture could show a person looking at a tree (observation) and then thinking the tree is old (inference).
9. Qualitative data: Color of leaves (e.g., green). Quantitative data: Number of leaves (e.g., 50).