Density

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/density

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the cosmic example?Neutron stars can have densities exceeding 10^17 kg/m³
2. Why do some things float and others sink?Things float when their average density is lower than the liquid they are in. If the density is higher, they sink. This happens because the liquid pushes back with a force equal to the weight of the liquid it pushes aside.
3. How do we calculate density?Density is found by dividing the mass of an object by its volume. The formula is ρ = m ÷ V. The mass is in grams or kilograms and the volume is in cubic centimeters or cubic meters.

Volumetric Mass Density: The scientific term for density, representing mass per unit volume.
Specific Weight: The ratio of an object's weight to its volume, distinct from density.
Specific Volume: The reciprocal of density (volume per unit mass), often used in thermodynamics.
Convection: Heat transfer in fluids caused by density differences due to temperature variations.