Did you know?
What do markers, red cabbage and birthday candles have in common? Nothing, you would think. But researchers know: There's a lot of chemistry behind it all. The colors of the markers are mixed from different individual colors. Red cabbage juice changes color when it comes into contact with acids and alkalis. And candles need a gas to burn: Oxygen.
Discover more experiments
Quiz
What is the difference between blue cabbage and red cabbage?
Answer
Red cabbage is both. But: In Bavaria, it is often prepared with baking soda, while elsewhere red cabbage is cooked with sour apples. The dishes have different acidity and therefore have a different color.
What does the H in H2O stand for?
a) Hafnium,
b) Hydrogen,
c) Hardwood
Answer
H stands for hydrogen.
Is pure water an acid, alkali or neither?
Answer
Water is neutral – neither an acid nor an alkali
What flavors develop in your mouth when you chew grain kernels?
Answer
The longer you chew cereals or bread, the sweeter the taste. Saliva contains enzymes that break down the starch from the bread dough into individual sugar components. These then taste sweet.
