Trivia questions (5 of 15)
- Multiple Choice
1. What scientific process is observable when "growing" rock candy with water, sugar, and wooden sticks?
Rock candy is made by using a supersaturated combination of sugar and water and providing a suitable surface, such as a wooden stick, for the mixture to crystallize. On average, it takes roughly six to seven days for crystals to form.
- Multiple Choice
2. A lava lamp's behavior is due to the __________ of the colored wax material changing with heat.
FUN FACT
The wax compound has a similar density as the water inside the lamp and fluctuates slightly with temperature. When the lamp's bulb is on, the wax gets less dense and rises. When the wax cools, it becomes more dense and sinks.
- Multiple Choice
3. Though most parts of the human body shrink with age, the nose and _______ actually keep growing.
While the rest of our body shrinks as we get older, our noses, earlobes, and ear muscles keep getting bigger. This is because they're made mostly of cartilage cells, which divide more as we age.
- Multiple Choice
4. Through what type of tissue can you observe capillary action as white flowers soak up colored water?
While xylem conducts water and dissolved nutrients upwards, phloem is the vascular tissue that conducts sugars and other metabolic products downward from the leaves.
- Multiple Choice
5. On what planet in our Solar System is a day longer than a year?
Because it is close to the sun, Venus has a faster orbit, completing one revolution around the sun in 225 Earth days. However, Venus rotates on its axis very slowly, taking 243 Earth days to complete a single rotation.
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