7. Density and Temperature - Students Free Notes

How is plasma the fourth state of matter? Give a reason.

Plasma is a state of matter where atoms lose electrons due to high energy, creating a mixture of free electrons and positive ions. It occurs naturally in stars and lightning. Related Questions: Two liquids A and B have densities of 1 g/mL and 1.2 g/mL, respectively. When both liquids are poured into a container, one … Read more

Write a method to find the volume and density of a human body.

The volume of a human body can be determined using the water displacement method. The person is fully submerged in a graduated tank, and the rise in water level is recorded as the volume. The density is then calculated using the formula: Density = Mass / Volume. Related Questions: Two liquids A and B have … Read more

Two liquids A and B have densities of 1 g/mL and 1.2 g/mL, respectively. When both liquids are poured into a container, one liquid floats on top of the other. Which liquid is on top, and why?

Liquid A is on top because it has a lower density than liquid B. Less dense liquids float on denser ones due to the difference in buoyant force. Related Questions: Differentiate the terms ‘science’, ‘technology’, and ‘engineering’ with suitable examples. Explain the terms hypothesis, theory, and law with examples. Define the scientific method and list … Read more