Mary discovered that the cell membrane of a bacteria acts like a fence because it keeps some things in and other things out. A. Observation

B. Analogy

C. Inference

Mary walked into her room where her little son was playing, found a broken window, and thought immediately that her son had broken it.

A. Observation

B. Analogy

C. Inference

Mary noticed that her counter top was warm to the touch.

A. Observation

B. Analogy

C. Inference

Mary noticed that the side walk was wet and thought that it may have been that the sprinklers had been on recently.

A. Observation

B. Analogy

C. Inference

Mary counted and recorded 20 heart beats in 10 seconds.

A. Observation

B. Analogy

C. Inference

The lecturer compared the human eye to a camera lens.

A. Observation

B. Analogy

C. Inference

1. B

2. C

3. A

4. C

5. A

6. B

Explanation:

1. Mary discovered that the cell membrane of a bacteria acts like a fence because it keeps some things in and other things out: this is an analogy because there's a comparison between the cell of a bacteria and a fence.

2. Mary walked into her room where her little son was playing, found a broken window, and thought immediately that her son had broken it: this is an inference because she immediately thought her son broke it.

3. Mary noticed that her counter top was warm to the touch: this is an observation which was based on an evidence of touch.

4. Mary noticed that the side walk was wet and thought that it may have been that the sprinklers had been on recently: this is an inference because it was based on her thoughts.

5. Mary counted and recorded 20 heart beats in 10 seconds: this is an observation because she actually counted her heart beats.

6. The lecturer compared the human eye to a camera lens: this is an analogy because it was a comparison between a human eye and a camera lens.

a chemical change results in a new substance being formed; whereas a physical change will result in a different state of matter

explanation: