Scientists and their contributions
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10. The table below shows some scientists and their inventions and discoveries.
Alexander Fleming -> Penicillin
Archimedes -> The water screw
Willis Carrier -> Air Conditioner
Wright Brothers -> Aircraft
According to the list above, how many of them made a discovery?
A) 1
B) 2
C) 3
D) 4
This question includes visual content: A table containing four rows. Each row maps a person to an innovation: 1. Alexander Fleming -> Penicillin, 2. Archimedes -> The water screw, 3. Willis Carrier -> Air Conditioner, 4. Wright Brothers -> Aircraft. There are handwritten marks over the image: a large red X across the table, a circled answer B, and the Turkish word 'buluş' (invention) written near the answer choices.
Animated Video Solution
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Step by Step Written Solution
Hi Elif, let's look at this science table and figure out how many of these people made a discovery.
Discovery vs. Invention Analysis
Before we start, let's define our terms. A discovery is finding something that already exists in nature. An invention is creating something new that did not exist before.
| Concept | Definition |
|---|---|
| Discovery | Finding something that already exists in nature |
| Invention | Creating a new tool, device, or process |
Now let's look at each person in the list. First, we have Alexander Fleming. He discovered Penicillin.
Analyzing the List
1. Alexander Fleming —> Penicillin
Penicillin is a substance that exists in mold. Fleming discovered its antibiotic properties in nineteen twenty-eight. So, this is a discovery.
Next, we have Archimedes and the water screw.
2. Archimedes —> The water screw
The water screw is a man-made machine used for transferring water. Since it was designed and built, it is an invention, not a discovery.
Third is Willis Carrier, associated with the Air Conditioner.
3. Willis Carrier —> Air Conditioner
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