MEDIUM
Lower Secondary Stage 8
IMPORTANT
Earn 100

Draw a diagram to show the particles in a piece of solid copper.

Important Questions on Elements, Compounds and Mixtures

MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>End of chapter review>Q 14
Draw a diagram to show the particles in carbon dioxide gas CO2.
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>End of chapter review>Q 15
In humans and other mammals, the air is breathed into the lungs. Oxygen travels by diffusion from the air in the lungs into the blood. The blood must keep moving around the body to keep the rate of diffusion high. Explain why.