* Take about 15 index cards and a flashlight that is opaque on all sides (so that light shines only through the front) into a very dark room.
* Place all 15 cards over the beam of light.
* Slowly remove the cards one at a time until you can barely detect the light, and then count the number of cards that remain over the light.
* After a few minutes, the light should begin to look brighter. When this is the case, add cards and see if you can still see the light.
* Repeat this process of gradually adding cards over a 15-minute period. Were you able to detect an increasingly dim light the longer you spent in the dark? Record your reaction.
* How many cards did it take to not see the light after time?
Same response.
Sra
To answer this question, we need to follow the experiment described and record our observations.
1. Gather 15 index cards and a flashlight that is opaque on all sides. Find a very dark room where you can conduct the experiment.
2. Place all 15 cards over the beam of light coming from the flashlight. This will block the light completely.
3. Slowly remove one card at a time until you can barely detect the light. Count the number of cards that remain over the light. This will be your initial observation.
4. Stay in the dark room for a few minutes, allowing your eyes to adjust to the darkness. Over time, the light should start to appear brighter.
5. Once the light starts to seem brighter, add cards back over the light one by one. See if you can still see the light with the additional cards. Continue adding cards gradually.
6. Repeat this process of gradually adding cards over a 15-minute period. Your objective is to determine how many cards it takes to no longer see the light.
7. During the process, record your observations and reactions. Pay attention to how the light appears brighter as your eyes adjust to the darkness and how many cards it takes for the light to become completely obscured.
8. Finally, note down the number of cards it took to not see the light after spending time in the dark.
By following these steps and recording your observations, you should be able to gather the data needed to find out how many cards it takes to no longer see the light after spending time in the dark.