Unit 1
What are the three phases of matter?
Solid, Liquid, and Gas
Thermal Energy transfers from __________?
From an area of high temperature to an area of low temperature
Which of the following is NOT a characteristic property:
1. Volume
2. Density
3. Flammability
4. Melting point
Volume
The amount of sunlight a plant gets is an example of what type of factor?
Environmental Factor
What is another word for particle?
Atom
Heat is known as ?
Thermal Energy
What are the four phase changes?
Melting, Freezing, Condensation, and Evaporation
How do you find Density?
Mass divided by Volume
What is the function of a seed coat?
To protect the seed
What is the behavior called when an animal tries to attract a mate?
Courtship
What phase will a liquid turn to as the particles expand?
Gas
What happens to particles when thermal energy is added?
The particles expand and move faster
When cutting an object in half what happens to its melting point?
The melting point stays the same
What does it mean if an organism is "fit" for its environment?
The organism is able to survive and reproduce
If an object sinks in water, what inference can we make about the object's density?
The density is greater than 1
What is the relationship between particle motion and kinetic energy?
Its a direct relationship.
As particle motion increase, kinetic energy increases.
or
As kinetic energy increase, particle motion increases
What happens to the force of attraction between particles when a substance condenses?
The force of attraction increases/ gets stronger
Rotting fruit is an example of a chemical change or a physical change?
Chemical Change
The presence of different breeds of dogs is a result of what factor?
Genetic Factor
What is an indicator of a chemical change?
Gas formation, heat production, light production, sound production, burning, precipitate forming
What does the conservation of matter state?
Matter is neither created or destroyed
What is temperature?
The average kinetic energy of a substance
What type of properties are used to identify unknown substances?
Characteristic Properties
Animals, Wind, Burrs, and Water are all agents that help transport a flower's pollen and/or _____________?
Seeds
When doing an experiment how many variables or things should you change?
One