Science Quiz #630

Science and Nature Quiz for 10 February 2021

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Q1. How many chemical elements currently recognised occur naturally?

102

Select from the options above.

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Q2. A synapse is a space where a nerve impulse travels between what?

Memories

Electrodes

Semi-conductors

Neurons

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Uh oh, did we make a mistake? Or perhaps you enjoyed learning something new! Good or bad, we welcome your feedback. Before submitting a correction, please consider the following:

Have you re-read the question to ensure you didn't overlook anything? Example: a question asking what is 'not' an example of something.
For brevity, we avoid adding clarification where we feel the intention is clear. Example: Which city has the largest population? We're looking for the largest of the four options, not the largest globally. Example: Which city is north of another? Choose the city that is due north over the one due east, even if the latter is a little to the north too.
Options can be eliminated if they are invalidated by the question. Example: We ask you to select the largest English city and we've included Paris in the options. That is a clue!
Have you done a quick search to confirm that your feedback is correct? You'd be surprised how many people don't!
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Q3. What are found, although in small amounts, in certain seeds and stones, such as those of apple, mango, peach, and bitter almonds?

Cyanides

Opiates

Glutamates

Ungulates

Select from the options above.

Uh oh, did we make a mistake? Or perhaps you enjoyed learning something new! Good or bad, we welcome your feedback. Before submitting a correction, please consider the following:

Have you re-read the question to ensure you didn't overlook anything? Example: a question asking what is 'not' an example of something.
For brevity, we avoid adding clarification where we feel the intention is clear. Example: Which city has the largest population? We're looking for the largest of the four options, not the largest globally. Example: Which city is north of another? Choose the city that is due north over the one due east, even if the latter is a little to the north too.
Options can be eliminated if they are invalidated by the question. Example: We ask you to select the largest English city and we've included Paris in the options. That is a clue!
Have you done a quick search to confirm that your feedback is correct? You'd be surprised how many people don't!
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Q4. Product, divisor, differential and quotient are terms in operations in what branch of science?

Marine biology

Botany

Mathematics

Astronomy

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Have you re-read the question to ensure you didn't overlook anything? Example: a question asking what is 'not' an example of something.
For brevity, we avoid adding clarification where we feel the intention is clear. Example: Which city has the largest population? We're looking for the largest of the four options, not the largest globally. Example: Which city is north of another? Choose the city that is due north over the one due east, even if the latter is a little to the north too.
Options can be eliminated if they are invalidated by the question. Example: We ask you to select the largest English city and we've included Paris in the options. That is a clue!
Have you done a quick search to confirm that your feedback is correct? You'd be surprised how many people don't!
Politeness goes a long way in encouraging us to consider your point of view.

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Q5. What is seen when sodium is dropped into water?

Note: This question was updated in February 2023

The metal slowly dissolves

Bubbles of oxygen

Violent fizzing

The water turns green

Select from the options above.

Uh oh, did we make a mistake? Or perhaps you enjoyed learning something new! Good or bad, we welcome your feedback. Before submitting a correction, please consider the following:

Have you re-read the question to ensure you didn't overlook anything? Example: a question asking what is 'not' an example of something.
For brevity, we avoid adding clarification where we feel the intention is clear. Example: Which city has the largest population? We're looking for the largest of the four options, not the largest globally. Example: Which city is north of another? Choose the city that is due north over the one due east, even if the latter is a little to the north too.
Options can be eliminated if they are invalidated by the question. Example: We ask you to select the largest English city and we've included Paris in the options. That is a clue!
Have you done a quick search to confirm that your feedback is correct? You'd be surprised how many people don't!
Politeness goes a long way in encouraging us to consider your point of view.

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Q6. Which of these is a form of bursitis?

Housemaid's knee

Athlete's foot

Tennis elbow

Cauliflower ear

Select from the options above.

Uh oh, did we make a mistake? Or perhaps you enjoyed learning something new! Good or bad, we welcome your feedback. Before submitting a correction, please consider the following:

Have you re-read the question to ensure you didn't overlook anything? Example: a question asking what is 'not' an example of something.
For brevity, we avoid adding clarification where we feel the intention is clear. Example: Which city has the largest population? We're looking for the largest of the four options, not the largest globally. Example: Which city is north of another? Choose the city that is due north over the one due east, even if the latter is a little to the north too.
Options can be eliminated if they are invalidated by the question. Example: We ask you to select the largest English city and we've included Paris in the options. That is a clue!
Have you done a quick search to confirm that your feedback is correct? You'd be surprised how many people don't!
Politeness goes a long way in encouraging us to consider your point of view.

Thank you for taking the time to get in touch! Rest assured we review every comment we receive.

Q7. Where is the W.M. Keck Observatory, a two-telescope astronomical observatory whose telescopes are among the largest optical/near-infrared instruments currently in use around the world?

Near the summit of Mauna Kea, Hawaii

Atacama Desert, Chile

Flinders Ranges, Australia

Mohave Desert, USA

Select from the options above.

Uh oh, did we make a mistake? Or perhaps you enjoyed learning something new! Good or bad, we welcome your feedback. Before submitting a correction, please consider the following:

Have you re-read the question to ensure you didn't overlook anything? Example: a question asking what is 'not' an example of something.
For brevity, we avoid adding clarification where we feel the intention is clear. Example: Which city has the largest population? We're looking for the largest of the four options, not the largest globally. Example: Which city is north of another? Choose the city that is due north over the one due east, even if the latter is a little to the north too.
Options can be eliminated if they are invalidated by the question. Example: We ask you to select the largest English city and we've included Paris in the options. That is a clue!
Have you done a quick search to confirm that your feedback is correct? You'd be surprised how many people don't!
Politeness goes a long way in encouraging us to consider your point of view.

Thank you for taking the time to get in touch! Rest assured we review every comment we receive.

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