Matter and Properties
What state of matter has a definite shape and volume?
Solid
What form of energy makes things warmer?
Heat
What process turns liquid water into water vapor?
evaporation
What do plants need to make their own food?
sunlight, water, carbon dioxide
What tool is used to measure temperature?
Thermometer
What property describes how much matter an object has?
Mass
Heat always flows from ____ objects to ____ objects.
warmer, cooler
What is the movement of water from clouds back to Earth called?
precipitation
What part of the plant makes food?
leaves
What tool measures mass?
balance
What is a mixture called when materials can be separated physically?
A mixture/heterogeneous mixture
What phase change happens when liquid water turns into gas?
evaporation
What landform is usually higher than the surrounding land?
mountain
What is it called when a trait helps an organism survive?
Adaptation
What is one step of the scientific method?
hypothesis, experiment, observation, etc.
What type of change occurs when ice melts into water?
Physical change
Why does metal feel colder than wood at the same temperature?
Metal conducts heat faster
Why are swamps usually humid?
warm, shallow water causes evaporation
Why would rainforest plants struggle if rainfall decreased?
they need a lot of water to survive
Why should experiments be repeated?
to make results reliable
What method would best separate iron shavings from sand?
using a magnet
What happens to water particles as temperature increases?
they move faster
Why do mountains usually have less humidity than swamps?
water drains quickly and air is cooler
What would happen to a food chain if one organism disappeared?
others would be affected and could die off
Why must only one variable be changed in a fair test?