SCIENTIFIC NOTATION AND SIGNIFICANT FIGURES/ SCIENTIFIC INVESTIGATION

Question 1

how many significant figures are there
70.500

Answer 1

5

Question 2

how many significant figures are there
0.00205

Answer 2

3

Question 3

how many significant figures are there
70.5

Answer 3

3

Question 4

how many significant figures are there
0.075

Answer 4

2

Question 5

when adding or subtracting round the answer to the

Answer 5

least number of decimal places

Question 6

when multiplying or dividing round the answer to the

Answer 6

Least number of significant digits

Question 7

convert standard form to scientific notation: 1230000000

Answer 7

1.23 x 10^9

Question 8

convert standard form to scientific notation: 0.000000876

Answer 8

8.76 x 10^-7

Question 9

when multiplying only the number is multiplied the exponents are ______

Answer 9

Being added

Question 10

when dividing only the number is divided the exponents are ______

Answer 10

subtracted

Question 11

A systematic approach to solving a problems or studying a phenomenon and communicating the results to the scientific community

Answer 11

scientific investigation

Question 12

first step to eighth step of a scientific investigation

Answer 12

Observe ➡️ Asking a question ➡️ Do Research ➡️ Form a hypothesis ➡️ design and perform an experiment ➡️ analyze the data ➡️ draw a conclusion ➡️ communicate results

Question 13

states that a prediction which is not true

Answer 13

null hypothesis

Question 14

assumes a prediction is correct

Answer 14

alternative hypothesis

Question 15

A variable that stays the same and changes the dependent variable
ex. The same coffee brand, percolator, amount, and type of water.

Answer 15

independent variable

Question 16

A variables that changes because of the independent variable.
ex. quantity of coffee grounds can impact the flavor of coffee

Answer 16

dependent variable

Question 17

variable that remains the same
ex. perking period

Answer 17

controlled variable/constant

Question 18

these are factors or condition that are changed or regulated in an experiment

Answer 18

variables

Question 19

[SCIENTIFIC INVESTIGATION] this is a tentative testable explanation to a scientific question

Answer 19

hypothesis

Question 20

these are numbers that are obtained from the use of measuring devices

Answer 20

measured numbers

Question 21

this is used to express very large or very small numbers

Answer 21

scientific notation

Question 22

[SCIENTIFIC INVESTIGATION]utilizes all senses to gather information

Answer 22

observe

Question 23

[SCIENTIFIC INVESTIGATION] formulate a question from what was observed

Answer 23

asking a question

Question 24

[SCIENTIFIC INVESTIGATION] gather information about the question formulated using reliable references

Answer 24

do research

Question 25

[SCIENTIFIC INVESTIGATION] will validate or negate the hypothesis

Answer 25

design and perform an experiment

Question 26

[SCIENTIFIC INVESTIGATION] data collected during the experiment should be organized and analyzed for patterns

Answer 26

Analyze the data

Question 27

[SCIENTIFIC INVESTIGATION] made based on the results of the analysis

Answer 27

Draw a conclusion

Question 28

[SCIENTIFIC INVESTIGATION] results of the scientific investigation

Answer 28

Communicate results

Question 29

[SIGNIFICANT OR NOT] non zero digits
ex. 822.34

Answer 29

significant

Question 30

[SIGNIFICANT OR NOT] zeros to the left of the first non zero digit
ex. 0.0036

Answer 30

not significant

Question 31

[SIGNIFICANT OR NOT] zeros between nonzero
ex. 20 003

Answer 31

Significant

Question 32

[SIGNIFICANT OR NOT] zeros that follow nonzero digits and are on the right of the decimal point
ex. 129.0

Answer 32

Significant

Question 33

[SIGNIFICANT OR NOT] trailing zeros to the right of nonzero digits in numbers that contain no decimal point

Answer 33

may or may not be significant

Question 34

rule in adding and subtracting decimals

Answer 34

1 digit past the decimal point

Question 35

rule in multiplying and dividing

Answer 35

three significant digits

Question 36

formula of getting the density

Answer 36

p = mass divided by volume

Question 37

how to get the answer of (3.8x10^(-5) x (1.2x10^(3) x (4.2 x 10^(3)

Answer 37

cancel 10^(3), multiply 3.8 and 1.2 and divide it by 4.2 and copy 10^(-5), don’t forget to round off