Why do mirrors show our reflection?

Which gas do we use for cooking in most homes?

What part of a refrigerator helps it stay cool?

Why do we see water droplets on the outside of a cold glass?

Why does bread rise while baking?

Which of the following is used to clean greasy dishes?

Why do onions make you cry when cutting them?

Why do we add baking soda in some cleaning solutions?

Why do we add salt to water while boiling pasta?

Which part of a pressure cooker keeps steam from escaping?