science homework
– Methods of Heat Transfer
A) Choose the correct answer:
Heat transfer through direct contact is called:
a) Radiation
b) Conduction
c) Convection
Heat transfer through liquids and gases is mainly called:
a) Convection
b) Conduction
c) Radiation
Heat from the Sun reaches Earth by:
a) Conduction
b) Convection
c) Radiation
A metal spoon becomes hot when placed in hot tea. This is:
a) Conduction
b) Convection
c) Radiation
Warm air rises and cool air sinks. This is an example of:
a) Radiation
b) Conduction
c) Convection
B) Classify the following:
Write: Conduction, Convection, or Radiation.
Heat from a campfire reaches your face. → __
A pan becomes hot on a stove. → __
Boiling water moves around in the pot. → __
You feel the heat from the Sun. → __
A metal spoon gets hot in a cup of hot chocolate. → __

science
🧪 Homework

Classify each compound as Organic or Inorganic, then identify it as Acid, Base, Salt, or Oxide.

1. CH₄ → /

2. HCl → /

3. NaOH → /

4. Na₂CO₃ → /

5. CO₂ → /

6. C₂H₅OH → /

7. H₂SO₄ → /

8. Ca(OH)₂ → /

9. KCl → /

10. MgO → /

11. C₆H₁₂O₆ → /

12. CuO → /

13. HNO₃ → /

14. CaCO₃ → /

15. C₃H₈ → /