Density of substances
To determine the density of some liquid and solid substances by measuring volumes and masses.
Lo que aprenden los alumnos
La base científica de este experimento
Density is a fundamental property of matter which depends on the state of aggregation and varies with temperature. It is a function of both mass and volume, defined as the ratio of mass to volume.
Density is a property of matter defined as the ratio of mass to volume.
Density depends on the state of aggregation of matter. For example diamond and graphite have different densities but both are composed of carbon. Density also depends on temperature. For example, an ice cube has a different density than a volume of water with the same mass as the ice cube.
Equipo utilizado
- Graduated glass cylinder 100 ml — 1226.16
- Beaker 100 ml — 1118.20
- Electronic balance — 2219.30
Productos químicos y reactivos
- Distilled water
- Glycerol
- A solid object
- An ice cube
Notas de seguridad
- No particular notes on this experiment.
Preguntas para los alumnos
- From the recorded data, calculate the density of the substances.
- Compare the density of ice with the density of water. Do you think other substances behave in the same way when frozen?
- Should you have calculated the ice cube volume by immersing it into the cylinder? Why?
Qué puedes esperar
Eliminación
Add an equal volume of warm water to the glycerol and dispose of the solution into the liquid wastes container.
Realiza este experimento en tu clase
Este experimento forma parte del « Mobile Lab » de ATP, un laboratorio autónomo que convierte un aula normal en un laboratorio de ciencias en pleno funcionamiento, con más de 200 experimentos de física, química, biología, robótica e ingeniería. « Gali », el tutor de IA integrado en ATP Connect, guía a los alumnos paso a paso y responde a sus preguntas en la mesa de trabajo.
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