What is Science?

• Science is a practical way of understanding

the world and everything in it.

Scientists

1. Observe

2. Question

4. Experiment

3. Explain their observations

The Story of the Invention of Velcro

• One day George de Mestral was walking with his dog in the forest.

• He observed that some spiny seeds were stuck to his trousers and the dog’s fur.

• He wondered what made the seeds so sticky.

• To answer the question, he looked at the seeds through a microscope.

• He discovered that the spines each had a hook on the end.

• This observation led him to invent a new kind of fastener for clothes and shoes. He called his invention ‘Velcro’.

QUESTION & ANSWER:

• What observation did George de Mestral do? He observed that some spiny seeds got stuck

to his trousers and the dog’s fur.

• What question did he ask? He asked what made the seeds so sticky.

QUESTION & ANSWER:

• How did he answer his question? He looked at the seeds through a microscope.

• What invention did his discovery lead to? The invention of velcro.

Being a Scientist

observe

discoveries

observe

discoveries

observe

discoveries

observe

discoveries