Unit 1

Question 1

What does a meter stick measure

Answer 1

Length in meters

Question 2

What does a balance measure

Answer 2

Mass in grams

Question 3

What does a thermometer measure

Answer 3

Temperature in degrees Celsius

Question 4

What is the SI units

Answer 4

Kelvins

Question 5

What does a spring scale measure

Answer 5

Force or weight in newtons

Question 6

What does a spectrometer measure

Answer 6

Electromagnetic spectrums(makes rainbows)

Question 7

What does a psychrometer measure

Answer 7

Humidity %

Question 8

What do you call the curve and the graduated cylinder with water

Answer 8

The meniscus

Question 9

How do you read the volume from the bottom of the curve

Answer 9

Always read at bottom of curve

Question 10

Define density

Answer 10

Amount of matter in a given object/volume

Question 11

What is in the triangle thing

Answer 11

M

D V

Question 12

Define scientific model

Answer 12

A representation of an object or system

Question 13

Name one example of a scientific model

Answer 13

Plastic fruit that looks real but does not taste real

Question 14

Define physical models and give an example

Answer 14

They look like the things they represent

Ex: Barbie doll

Question 15

Define a mathematical model and give an example

Answer 15

Used to predict something using symbols

Ex: weather map

Question 16

What is the formula for speed

Answer 16

Speed equals distance divided by time

Question 17

What is the formula for density

Answer 17

D equals M divided by V. Remember heart in half

Question 18

Define conceptual models and give an example

Answer 18

A model of an idea or theory

Ex: Big Bang theory of a blueprint of a building

Question 19

How are models used

Answer 19

To represent something very large or very small: and to help illustrate or explain a theory

Question 20

Define scientific law

Answer 20

A summary of many experimental results and observations

Question 21

When does a theory become a law

Answer 21

When it correctly projects the result of many experiments

Question 22

Define Theory

Answer 22

Proven through research

Question 23

What is the order to the scientific method(8)

Answer 23

1. Observation
2. Purpose/question/problem
3. Research
4. Hypothesis
5. Experiment
6. Organize data/analysis
7. Conclusion
8. Share results

Question 24

Define observation

Answer 24

Any use of senses to gather information

Question 25

Define hypothesis

Answer 25

A possible explanation or answer to a question

Question 26

Define a controlled experiment

Answer 26

Compares the results from a controlled with the results from one or more experimental groups

Question 27

Define data

Answer 27

They are pieces of information acquired through experimentation

Question 28

Define organizing data

Answer 28

When you organize data into charts or graphs to help make the relationship between information easier to see

Question 29

Define a conclusion

Answer 29

Oh conclusion must refer back to your hypothesis and they also guide what you do next

Question 30

What is the independent variable

Answer 30

Changed in an experiment

Question 31

What is the dependent variable

Answer 31

Result from the independent variable

Question 32

What does a graduated cylinder measure

Answer 32

Volume(milliliters)

Question 33

Define accuracy

Answer 33

How close a measurement is the true value

Question 34

Define precision

Answer 34

How close the measurements are to each other

Question 35

What are qualitative measurement

Answer 35

Words such as heavy or hot

Question 36

What are quantitative words

Answer 36

Measurements that involve numbers

Question 37

Significant figures in a measurement include

Answer 37

All of the digits that are known plus one more digit that is estimated

Question 38

Descriptive investigation and an example

Answer 38

Describe something | Ex weather

Question 39

Comparative investigation an example

Answer 39

``` When you compare two or more things or compare one thing as it changes over time Ex One class to another ```

Question 40

Experimental investigation and one example

Answer 40

When you add a variable | Ex adding weight to a chair