Water Vocabulary
Invest. 1, Part 1 Drops of Water
absorb (v.) to soak into, when a liquid soaks into a material
bead up (v.) to take the shape of a dome, when water drops, or beads, sit on top of a waterproof surface
earth material (n.) any natural material that makes up or comes from the earth
ex. rocks, sand, air, water
surface (n.) the outside of an object
waterproof (adj.) not allowing water through, nonporous (without holes), non-absorbant
(water will bead up on a waterproof surface)
Invest. 1, Part 2 Surface Tension
dome (n.) the shape water takes when it is on a flat surface (looks like a hemisphere)
surface tension (n.) the skin-like surface on water (and other liquids) that pulls it together into the smallest
possible volume (looks like a hemisphere)
Invest. 1, Part 3 Water on a Slope
gravity (n.) the natural force that pulls objects toward each other. On Earth, all objects are pulled to the center
of Earth
slope (n.) a slanted or tilted surface
Invest. 1, Part 4 Water in Nature
natural material (n.) any material that makes up or comes from the earth; earth material
repel (v.) when a liquid does not soak into a material, to be forced in the opposite direction
Invest. 2, Part 1 Hot Water, Cold Water
expand (v.) to increase in volume, get bigger (take up more space)
contract (v.) to decrease volume, get smaller (take up less space)
temperature (n.) a measure of how hot or cold something is
thermometer (n.) a tool used to measure how hot or cold something is
volume (n.) a measure of how much space something occupies (3 dimensional space)
Invest. 2, Part 2 Sinking and Floating Water
float (v.) to stay on top, to say on the surface as a result of being less dense
less dense (adj.) less tightly-packed (when something is less dense than water it floats on water)
more dense (adj.) more tightly-packed (when something is more dense than water it sinks in water)
sink (v.) to go down, move to the bottom as a result of being more dense
Invest. 2, Part 3 Water as Ice
freeze (v.) to decrease the temperature so the liquid (water) turns to the solid form (ice)
Freezing point of water: 32 degrees Fahrenheit or 0 degrees Celsius
liquid (adj., n.) one of the three states of water, liquids have no definite shape but definite volume
solid (adj., n.) one of the three states of water, solids have definite shapr and volume
mass (n.) the amount of material in something
melt (v.) to warm solid (ice) until it changes to its liquid form (water)
state (n.) a kind or form of matter; the three common states of matter are liquid, solid, and gas
Invest. 3, Part 1 Evaporation
evaporation (n.) the process of liquid water becoming part of the air as water vapor
Evaporation is caused by warming.
evaporate (v.) to change from liquid to gas and become part of the air
gas (n.) a state of water that we cannot see
water vapor (n.) the gaseous state of water
Invest. 3, Part 3 Surface Area
surface area (n.) the area of liquid (or the outside of a surface) which is exposed to or touching the air
Invest. 3, Part 4 Condensation
condensation (n.) the process by which water vapor changes into liquid water, usually on a surface
Condensation is caused by cooling.
condense (v.) to cool and change from a gas (water vapor) to a liquid (water)
water cycle (n.) the repeating sequence of condensation and evaporation of water on Earth, causing clouds and
rain (and other forms of precipitation)
Invest. 4, Part 1 Water in Earth Materials
gravel (n.) rocks that are smaller than pebbles and drain water quickly
soil (n.) a mixture of humus, sand, silt, clay, gravel, or pebbles
humus (n.) bits of dead plant and animal parts in the soil
retain (v.) to hold or continue to hold
water retention (n.) the ability to soak up and hold water
Invest. 4, Part 2 Waterwheels
waterwheel (n.) a wheel turned by the force of moving water
blade (n.) the part of the waterwheel that the water pushes as it moves downward
shaft (n.) the part of the waterwheel that the blades turn
waterwheel
Invest. 4, Part 3 Water in Soil
drainage (n.) the movement of water through soil