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Scientific Method
Classification
Matter
Atoms and more Matter
100
What are the first two things a scientist does in the scientific method?
Ask a question and form a hypothesis
100
An animal breathes under water, has scales, and lays eggs... What kind of animal is it?
A fish
100
What are the three states of Matter?
Solid, liquid, and gas
100
What particle in an atom has a positive charge?
A proton
200
What do you call an educated guess or what you think is the answer to your question?
A hypothesis
200
The most specific level of classification is...
Species
200
Describe the molecules in a gas AND draw a picture of the molecules.
The molecules in a gas are spread far apart and move very fast.
200
What is an isotope?
An atom of the same element with the same number or protons but a different number of neutrons.
300
Who is an engineer?
A person who makes technology
300
The least specific or most broad level of classification is...?
Domain
300
Describe the process of evaporation and explain if energy is loss or gained.
Evaporation is when a liquid turns into gas. Energy is gained.
300
What is the difference between a physical and chemical change?
A physical change is reversible and does not making anything new. A chemical change makes something new and is irreversible.
400
What is the difference between an unintended consequence and an intended benefit?
• An unintended consequence is something you did not want to happen. For example the pollution caused from cars. • An intended benefit is something that you wanted to happen and is a good thing. For example a car lets you travel to places quickly.
400
Where do the two parts of a species scientific name come from?
Genus and Specific name
400
Describe in detail what would happen if you left a chocolate bar out in the sun?
The chocolate bar would change from a solid to a liquid through melting. The molecules will move faster and have more energy.
400
Give the property and type of change... a penny turning green after sitting in vinegar.
A chemical change and the chemical property of reactivity and ability to rust
500
Give an example of an unintended consequence of a car and give an example of an intended benefit.
Answers will vary
500
Describe how a dichotomous key helps scientists identify organisms.
• A dichotomous key is a series of questions that help scientists observe characteristics of an organism to identify the organism.
500
Give an example of condensation.
Answers will vary
500
Give the property and type of change... salt dissolving in water
Physical change, and the physical property of solubility