- polarity: uneven distribution of charges across a molecule making one end positive (H) and the other negative (O)
- cohesion: the tendency for water molecules to form weak bonds and stick to each other
- adhesion: the tendency of water to stick to other substances
- capillary action: both adhesion and cohesion allow water to move in one continuous column from a plant's roots to its leaves. This upward movement is called capillary action
- surface tension: a force that acts on the particles at the surface of a liquid
- specific heat: the amount of heat needed to increase the temperature of 1 kg of a substance by 1°C
- hydrogen bond: the positive hydrogen ends of one water molecule attract the negative oxygen ends of nearby water molecules, causing them to stick together like weak magnets. This attraction causes water molecules to form temporary bonds that break easily. They are called hydrogen bonds
1. a, d
2. a
3. hydrogen
4. False
5. cohesion
6. surface tension
7. The inward pull of surface molecules creates a curved surface, minimizing surface area and forming a meniscus or droplet shape.
Parent Tip: Review the logic above to help your child master the concept of 2 2 properties of water worksheet.
