A Wonderleaf question
Why does cheese stretch when it melts?
a real page from the book
Cheese stretches when heat loosens its protein strands and melts the fat between them. In cheeses like mozzarella, those proteins can slide into long lines while still holding together, so a warm bite pulls into strings instead of snapping apart.
Different cheeses behave differently because their protein structure and moisture are not the same. Mozzarella is built for a good pull; older cheddar usually turns soft and rich, but its shorter, tighter proteins do not make the same long strands.
Wonder words
- protein
- fat
- mozzarella
- melt
Try it out
Warm tiny pieces of mozzarella and cheddar on toast, then compare how far each one pulls with a fork.
Read the whole picture book
Watercolour scenes, straight answers, about three minutes cover to cover.
Open the picture bookKeep wondering
- Who invented pizza?
- How is chocolate made?
- How did people keep food fresh before refrigerators?
- Why do fruits taste sweeter when they are ripe?
- Why do we cook food?
- How does food turn into energy?
One more wonder: Why is space so dark?
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