Introduction to Science
What is the study of the natural world called?
Science
What are the three common states of matter?
Solid, Liquid, and Gas
What is the basic unit of life?
Cell
What layer of Earth contains air?
Atmosphere
What state of matter is water vapor?
Gas
What method do scientists use to solve problems?
Scientific Method
What type of substance is made of only one kind of material?
Piure substance
Which cell part controls the activities of the cell?
Nucleus
What system includes all living things on Earth?
Biosphere
What happens when water freezes?
Liquid changes into solid
What tool is used to measure temperature?
Thermometer
Which state of matter has a definite shape?
Solid
Which part of the plant makes food?
Leaf
What do we call the daily condition of the atmosphere?
Weather
What is melting?
Solid changing into liquid
Why is laboratory safety important?
To prevent accidents and injuries
What happens when a liquid changes into a gas?
Evaporation
What green pigment helps plants make food?
Chlorophyll
What protects Earth from harmful rays from the Sun?
Ozone Layer/Atmosphere
What happens to particles when matter is heated?
They move faster.
Name one branch of science that studies living things.
Biology
Give one example of a pure substance.
Water, Salt, Gold
What process do plants use to make food?
Photosynthesis
Name one of Earth’s four major systems.
Atmosphere, Hydrosphere, Geosphere, Biosphere
What is condensation?
Gas changing into liquid.