
On a sunny Saturday morning, Mina built a cardboard moon buggy at the kitchen table. She wanted it ready before lunch.
Why Does Glue Hold Two Things Together?Glue works by spreading into tiny spaces on surfaces and then hardening or sticking as it dries.
1. On a sunny Saturday morning, Mina built a cardboard moon buggy at the kitchen table. She wanted it ready before lunch.
2. Mina pressed a paper wheel onto one side. The wheel slid down and landed in a dot of glue.
3. Mina tried a large puddle next. The wheel floated, and her fingers got sticky.
4. Mina wiped the wheel clean and tried a tiny dab. It popped off when she lifted the buggy.
5. Mina leaned close with a magnifying glass. The cardboard looked smooth, but its surface had tiny bumps and spaces.
6. The school glue was a liquid that could spread into those tiny spaces. As it dried, it could harden and grip both surfaces.
7. Mina spread a thin layer of glue over the buggy's side. Then she lined up the wheel and pressed it down.
8. Mina placed a small wooden block on the wheel. She kept her hands in her lap while the glue dried.
9. When Mina lifted the moon buggy, the wheel stayed on. Glue works by spreading into tiny spaces on surfaces and then hardening or sticking as it dries.
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