States Of Matter Flashcards
(30 cards)
What are the defining properties of a solid?
A solid has a definite shape and volume, and its particles are tightly packed.
What are the defining properties of a liquid?
A liquid has a definite volume but takes the shape of its container, and its particles can move past each other.
What are the defining properties of a gas?
A gas has no definite shape or volume, and its particles are widely spread out.
Classify the following: wood, water, and air.
Wood is a solid, water is a liquid, and air is a gas.
Describe and draw the arrangement of particles in a solid.
The particles in a solid are arranged in a regular, tightly packed pattern. (Drawing needed).
Describe and draw the arrangement of particles in a liquid.
The particles in a liquid are close together but arranged randomly. (Drawing needed).
Describe and draw the arrangement of particles in a gas.
The particles in a gas are spread far apart and move randomly. (Drawing needed).
Why are scientific theories based on experiments and observations?
Scientific theories are developed based on repeated experiments and careful observations.
How does new evidence affect existing scientific theories?
New evidence can modify or replace existing scientific theories.
How do gas particles move and interact with their container?
Gas particles move randomly and collide with the walls of their container.
What happens to the movement of particles when a substance is heated?
The particles move faster and further apart.
What is diffusion?
Diffusion is the movement of particles from an area of high concentration to an area of low concentration.
What is melting?
Melting is the process of changing from a solid to a liquid.
What is boiling?
Boiling is the process of changing from a liquid to a gas throughout the liquid.
What is freezing?
Freezing is the process of changing from a liquid to a solid.
What is condensation?
Condensation is the process of changing from a gas to a liquid.
What is the difference between boiling and evaporation?
Boiling occurs throughout a liquid at a specific temperature, while evaporation occurs at the surface at any temperature.
What is the basic unit of all living things?
The basic unit of all living things is a cell.
What instrument is used to observe cells?
A microscope is used to observe cells.
What are the main parts of an animal cell?
The main parts of an animal cell are the nucleus, cytoplasm, and cell membrane.
What are the main parts of a plant cell?
The main parts of a plant cell are the cell wall, chloroplasts, and vacuole, in addition to the nucleus, cytoplasm, and cell membrane.
What is the function of the nucleus in a cell?
The nucleus controls the cell’s activities and contains DNA.
What is the function of the cytoplasm in a cell?
The cytoplasm is where most of the cell’s chemical reactions occur.
How do you calculate the magnification of a microscope?
You multiply the magnification of the eyepiece by the magnification of the objective lens.
