Key learning points

1. Magnets attract iron and steel
2. Insoluble solids can be separated from a liquid using a filter by a process known as filtration.
3. Filter paper is folded to make a pocket that fits in a filter funnel for filtering fine particles
4. A drop of water on a filter funnel helps keep the filter paper cone open for easy filtering

Keywords

• Filtration - a process that separates insoluble substances from a liquid using a filter

• Filter paper - placed inside the filter funnel to separate the insoluble solid from the liquid in the mixture

• Filter funnel - is cone-shaped with a tube, and is placed in the top of the conical flask when filtering.

• Residue - the insoluble solid collected in the filter paper

• Filtrate - the liquid separated from the insoluble solid

Common misconception