Why do onions make you cry?

They release an irritating gas when cut

Does searing seal in meat juices?

No, it adds flavor through browning

Does adding salt make water boil much faster?

No, it barely changes the boiling point

Why are copper pans prized?

They conduct heat evenly and quickly

Kitchen Science Facts Quiz With Answers: Test Your Knowledge

Cutting onions releases a gas called syn-propanethial-S-oxide that makes eyes water, and this kitchen science facts quiz with answers explains the chemistry and physics behind everyday cooking. Learn why searing doesn't seal in juices, why salt barely raises water's boiling point, how microwaves heat food and why bananas ripen other fruit.

Start Kitchen Science Facts Quiz With Answers Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Onion
Why do onions make you cry?
Sear
Does searing seal in meat juices?
Salt boil
Does adding salt make water boil much faster?
Microwave
How do microwaves heat food?
Banana
Why do bananas ripen other fruit?
Avocado
Does leaving the pit in guacamole stop browning?
Alcohol
Does all alcohol cook off in a dish?
Cast iron
What is seasoning on cast iron?
Copper
Why are copper pans prized?
McGee
Who wrote the classic book On Food and Cooking?

Explanations: answer key for all 10 questions

Q1: Why do onions make you cry?
Answer: They release an irritating gas when cut
Chilling onions helps.
Q2: Does searing seal in meat juices?
Answer: No, it adds flavor through browning
Harold McGee helped debunk it.
Q3: Does adding salt make water boil much faster?
Answer: No, it barely changes the boiling point
Salt is for seasoning.
Q4: How do microwaves heat food?
Answer: By making water molecules vibrate
Heat spreads by conduction.
Q5: Why do bananas ripen other fruit?
Answer: They release ethylene gas
Use a paper bag to speed ripening.
Q6: Does leaving the pit in guacamole stop browning?
Answer: Only where it touches
Covering the surface works better.
Q7: Does all alcohol cook off in a dish?
Answer: No, some can remain
It depends on time and method.
Q8: What is seasoning on cast iron?
Answer: Polymerized oil that forms a nonstick layer
Heat bonds the oil.
Q9: Why are copper pans prized?
Answer: They conduct heat evenly and quickly
They respond fast to heat changes.
Q10: Who wrote the classic book On Food and Cooking?
Answer: Harold McGee
It was first published in 1984.

Kitchen Science Facts Quiz – Myths and Science in the Kitchen

Kitchen science explains why cooking works and busts many myths. Cutting onions releases an irritating gas, bananas release ethylene that ripens nearby fruit and microwaves heat food by making water molecules vibrate.

Some popular beliefs are wrong. Searing meat does not seal in juices but adds flavor through browning, salt barely changes water's boiling point and leaving an avocado pit in guacamole only protects the area it touches. Some alcohol remains even after long cooking.

Cookware science matters too. Cast iron seasoning is polymerized oil that forms a nonstick layer, and copper pans conduct heat quickly and evenly. Harold McGee's On Food and Cooking, first published in 1984, helped popularize kitchen science.

What This Quiz Teaches

Home cooks and science fans will enjoy these questions.

Why onions cause tears
Whether searing seals juices
How microwaves heat
Why bananas ripen fruit
Who wrote On Food and Cooking

Did You Know?

Garlic gets milder when cooked.
Pasta doesn't need oil in water.
Resting meat redistributes juices slightly.
Altitude changes baking.
Sharp knives are safer than dull ones.