Question 1

What is the chemistry of cooking?

Accepted Answer

The chemistry of cooking is how different ingredients change when mixed and cooked together. It's like magic, but using science, where heat and mixing make delicious food.

Question 2

Why do onions make you cry when you cut them?

Accepted Answer

Onions release a gas that makes your eyes sting and tear up when you cut them. Your eyes produce tears to wash away the irritation.

Question 3

How does bread rise when baked?

Accepted Answer

Bread rises because of yeast. Yeast is a tiny living thing that makes bubbles and these bubbles puff up the dough, making it light and fluffy.

Question 4

What makes pancakes fluffy?

Accepted Answer

Pancakes get fluffy because of baking powder. This ingredient makes bubbles in the pancake batter when it heats up, helping them rise.

Question 5

Why do apples turn brown after being cut?

Accepted Answer

Apples turn brown when cut because air mixes with something in the apple called enzymes. This reaction makes the apple's surface turn brown.

Question 6

Why does sugar turn into caramel when heated?

Accepted Answer

Sugar turns into caramel when heated because the heat changes its structure. It melts and then starts to get sticky and brown as it gets hotter.

Question 7

What happens when you beat eggs?

Accepted Answer

Beating eggs makes them foamy and bubbly. The bubbles help make cakes and omelets light and airy.

Question 8

What is the role of salt in cooking?

Accepted Answer

Salt makes food taste better by enhancing its flavors. It might also help to keep food fresh for a longer time.

Question 9

How do spices like chili make food spicy?

Accepted Answer

Spices like chili have something called capsaicin that tricks your mouth into feeling hot. It makes food taste spicy and sometimes makes your mouth tingle.

Question 10

Why does oil float on water?

Accepted Answer

Oil floats on water because oil is lighter than water. They don't mix because they are made up of different substances.

Question 11

What happens when you add lemon juice to milk?

Accepted Answer

Adding lemon juice to milk makes it curdle, which means the milk separates into lumps and liquid. This happens because the acid in lemon juice changes the milk's proteins.

Question 12

Why does meat turn brown when cooked?

Accepted Answer

Meat turns brown when cooked because heat changes its color and flavor. The heat makes the outside of the meat darken, which is often called browning.

Question 13

How does water turn into steam?

Accepted Answer

Water turns into steam when it gets very hot and boils. This means it changes from liquid to gas, like when you see steam rising from a pot.

Question 14

Why do baked goods become hard when they cool down?

Accepted Answer

Baked goods become hard when they cool because the water inside them evaporates. As they dry out, they lose their softness.

Question 15

What causes popcorn to pop?

Accepted Answer

Popcorn pops because the heat makes water inside the kernels turn into steam. The steam builds up pressure until the kernel explodes and turns inside out.

Question 16

Why do we use baking soda in cookies?

Accepted Answer

Baking soda helps cookies get fluffy and soft. When it heats up, it releases gas bubbles that make the dough rise.

Question 17

What is the purpose of marinating meat?

Accepted Answer

Marinating meat adds flavor and can make it more tender. The ingredients in the marinade soak into the meat, making it taste delicious.

Question 18

Why does chocolate melt in your mouth?

Accepted Answer

Chocolate melts in your mouth because the temperature of your body is just right for turning it from solid to liquid. This is why chocolate feels smooth and creamy when you eat it.

Question 19

How does boiling water cook food?

Accepted Answer

Boiling water cooks food by heating it evenly. The hot water transfers heat to the food, cooking it through from the outside in.

Question 20

Why do eggs change color when cooked?

Accepted Answer

Eggs change color when cooked because the heat changes their proteins. The clear part turns white and the yolk becomes more solid and lighter in color.

The Chemistry of Cooking: Exploring Reactions and Techniques - 20 FAQs Explained Simply