Intro to Science Flashcards Preview

8th Grade Science > Intro to Science > Flashcards

Flashcards in Intro to Science Deck (32):
1

What are in "good graphs"?

all lines drawn with rulers; appropriate title; titles on x- and y- axis; all units are identified; correct spelling; data is understood; colorful and neat; consistant intervals

2

Lab Equipment (A-M {10})

Beaker; Flask; Graduated Cylinder; Evaporating Dish; Alcohol Burner; Electronic Scale; Funnel; Eye Dropper; Hot Plate; Metal Spatula

3

Lab Equipment (P-W {11})

Test Tube; Test Tube Brush; Wire Stand; Ring Stand; Spring Scale; Safety Glasses; Thermometer; Rubber Stopper; Pipette; Tongs; Stirring Rod

4

What number is the metric system based on?

10

5

Metric System Prefixes

kilo hecto deka deci centi milli

6

"milli" abbreviation & value

m ; .001

7

"centi" abbreviation & value

c ; .01

8

"deci" abbreviation & value

d ; .1

9

"deka" abbreviation & value

D ; 10

10

"hecto" abbreviaton & value

h ; 100

11

"kilo" abbreviation & value

k ; 1000

12

Metric Units (without prefixes)

Gram (g) Liter (L) Meter (m) Newton (N) Degrees Celsius (*C)

13

Length

the distance from one point to another

13

Is mass or weight constant?

Mass is constant. Weight can change depending on the force of gravity.

14

Meniscus

the bottom of the curve; what you read from to determine water level

15

Formula for the volume of a regular solid

volume = length x width x height

16

Appropriate unit for the volume of a regular solid and for the volume of a liquid

solid = cm cubed
liquid = mL

17

Formula for density

density = mass / volume

18

Denisty of water

1 g/mL

19

Steps of the Scientific Method

1.Problem 2.Research 3.Hypothesis 4.Materials 5.Procedure 6.Data
7.Conclusion 8.Analysis

20

Variable

the factors in an experiment that can be changed to affect the outcome of the experiment

21

1. Problem

the question your experiment will answer

22

2. Research

information you need to help write the hypothesis

23

3. Hypothesis

an educated guess for the answer to the problem. you must tell WHAT you think and WHY!

24

4. Materials

things you need for the experiment

25

5. Procedure

the numbered steps to follow when doing the experiment

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6. Data / Observations

the information you record while doing the experiment

27

7. Conclusion

the results. use the RACE strategy to Restate and Answer the problem and include data to support your answer (Cite evidence)

28

8. Analysis

use the rest of RACE to Explain what worked well, and what didn't. how might you change the experiment? why are the results important?

29

5 Golden Rules of Writing a Procedure

1. All steps must be numbered (not bulleted)
2. The steps must be in order
3. All steps must be written as complete commands
4. No more than 2 directions per command
5. Steps must provide specific mrasurements and amounts

30

RACE Strategy in Science (Conclusion)

Conclusion:
R - Restate the problem
A - Answer the problem
C - Cite data to support answer

31

RACE Strategy in Science (Analysis)

Analysis:
E - Evaluate your investigation by...
•explaining the strengths & weaknesses of the experiment & why they are strengths&weaknesses
•explaining what you would change about the experiment & why
•explaining who would care about the results & why