Science chp 1, 8th grade
Terms
undefined, object
copy deck
- What is an example of a limitation of a model.
- They don't act exactly like the things they model
- Mass
- the amount of matter
- The difference between volume/mass
- Volume is the amount of space taken up by an object, and mass is the amount of matter an object contains.
- Technology
- the application of knowledge, tools, and materials to solve problems and accomplish tasks
- To be valid, a hypothesis must be
- testable and supported by evidence
- Theory
- a unifying explanation for broad range of hypotheses and observations that have been supported by testing
- Explain the difference between science/technology.
- Science is a process of observing and asking questions about the natural world. Technology is the application of science knowledge and the use tools to solve everyday practical problems.
- Scintific methods
- the ways in which scientists answer questions and solve problems
- How many milliliters are in 3.5kL?
- 3,500,000 mL
- Density
- the amount of matter in a given volume
- The difference between observation/hypthesis
- An observation is any use of the senses to gather information. A hypothesis is a possible answer to a question. Hypothesis can be tested. Observations can be used to develop and test hypotheses.
- Hypothesis
- A possible explanation or answer to a question
- A Map is an example of a
- model
- What is the difference between theroy/law.
- A theroy explains why someting happens. A law states what happens.
- Law
- a summary of many experimental results and observations: a law tells how things work
- The length of 10m is equal to
-
1,000cm
10,000mm - meter
- the basic SI(International System of Units) of length
- The difference between model/theory.
- A therory is an explanation for how something happens. A model can represent an explanation or some aspect of the theory.
- model
- a representation of an object or system
- The difference between area/density
- Area is the amount of surface an object has, while density is the amount of matter in a given volume
- observation
- Any use of the senses to gather information
- Data
- any pieces of information gathered through experimentation
- Area
- a measure of how much surface an object has
- Volume
- the amount of space that something occupies or the amount of space something contains
- Temperature
- a measure of how hot(or cold) something is