Science Fair: Easy Round | Quizalize

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Science Fair: Easy Round | Quizalize

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Science Fair: Easy Round

Quiz by Darwin James R. Singca

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Q 1/10
Score 0
Which of these materials will float when placed in water?
15
A. Coin
B. Marble
C. Empty Plastic Bottle
D. Rock
Q 2/10
Score 0
It is the ability of a material to react with certain substances or conditions.
15
A. Density
B. Solubility
C. Viscosity
D. Chemical Reactivity

10 questions

Q.

Which of these materials will float when placed in water?

1

15 sec

Q.

It is the ability of a material to react with certain substances or conditions.

2

15 sec

Q.

When mixing orange juice powder with water, we create what kind of mixture?

3

15 sec

Q.

Which of the following materials can undergo the process of bending?

4

15 sec

Q.

Useful or Harmful:

Electric wire is used to conduct electricity.

5

15 sec

Q.

What is the process by which water changes from a liquid to gas or vapor?

6

15 sec

Q.

What makes the ice cream melt?

7

15 sec

Q.

Iron when combined with oxygen forms.

8

15 sec

Q.

True or False:

The solution consists of solute and solvent.

9

15 sec

Q.

What is the universal solvent?

10

15 sec

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Memory Adventure: From Learning to Forgetting Imagine Alex is preparing for a school science fair. Storing Memories (2.5) Alex studies a science experiment. The semantic memory (facts and knowledge, like “water boils at 100°C”) is stored in the brain, while episodic memory (personal experiences, like “I mixed vinegar and baking soda yesterday”) records the event. The hippocampus (the brain’s “save button”) helps transfer these memories into long-term memory. During sleep, memory consolidation (making memories stable and long-lasting) happens, and Alex vividly remembers the fun surprise when the mixture fizzes—a flashbulb memory (emotionally strong, vivid memory). Alex also learns the skill of carefully pouring liquids, a procedural memory stored in the basal ganglia, and how to react when the mixture splashes, a conditioned response stored in the cerebellum. Emotions make the memory even stronger, thanks to the amygdala. Retrieving Memories (2.6) The next day, Alex goes to the science fair. Seeing the experiment table triggers priming (unconscious memory activation—seeing the table makes Alex remember steps). Being in the same classroom helps context-dependent memory (better recall in the same place as learning). Alex is also in the same excited mood as while practicing, so mood-congruent memory helps remember details of the experiment. When listing the steps, Alex remembers the first step clearly and the last step best, thanks to the serial position effect. Using strategies like quizzing himself earlier (testing effect) and spacing study sessions (spacing effect) improves retrieval. Forgetting & Memory Errors (2.7) During the fair, Alex tries to remember an old trick learned last year, but some details are fuzzy. This is retroactive interference (new memories block old ones). At the same time, old steps from last year sometimes confuse him, an example of proactive interference (old memories block new info). Alex’s friend jokingly says he added glitter to the experiment last week. Alex later misremembers seeing glitter—this is the misinformation effect. He even forgets where he first learned the correct steps, a case of source amnesia, and feels a strange sense of déjà vu when looking at a similar experiment table. Unfortunately, Alex’s cousin has anterograde amnesia (cannot form new memories) and can only remember things from before last year, while his neighbor has retrograde amnesia (loses past memories) and cannot recall last week’s fair prep. Luckily, Alex’s strong study habits, sleep, and emotional engagement helped protect his memories from being forgotten too quickly.