The Ever-Evolving World of Science
Short Questions
1. Why do some fruits taste sour?
Answer: Because they contain acids.
2. What makes a lamp glow?
Answer: Electricity flowing through a bulb.
3.Can ice melting be reversed?
Answer: Yes, by freezing water.
4.How does water from the sea become rain?
Answer: It evaporates and forms clouds.
5. Why do our bodies change in middle school?
Answer: Because of growth and puberty.
6.Do plants breathe like animals?
Answer: Yes, through tiny holes in leaves.
7. How did early humans tell time?
Answer: By observing shadows of objects.
8. What causes day and night?
Answer: Earth rotating on its axis.
9.Why do eclipses happen?
Answer: When Earth or Moon casts a shadow.
10.What is a simple way to explore science?
Answer: Doing experiments and asking questions.
Long Questions
1. How can we classify materials like metals and non-metals?
Answer:We classify them by their properties, like if they conduct electricity. For example, metals shine and conduct heat, but non-metals don’t.
2.Why do some changes, like a battery running out, not reverse?
Answer- Some changes are permanent because the materials inside change completely. Like in a battery, chemicals get used up and can’t be reused.
3.How does heat affect things like ice or glaciers melting?
Answer- Heat makes things warmer, so ice turns to water. In glaciers, heat from the sun causes slow melting over time.
4. How do plants get their food to grow?
Answer- Plants make food using sunlight, water, and air in a process called photosynthesis. They use leaves to capture sunlight and create energy.
5.Why is it important to ask questions in science?
Answer- Asking questions helps us learn how things work and discover new ideas. It makes us curious and helps solve problems in the world.
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