Question

Beginning with Science 02: Scientific Investigation
For this assignment you will do two things:
Part I: Evaluate one experimental design. (10 points)
Part II: Design your own experiment using the scientific method. (40 points)
Review each scenario below, and choose one to complete for your assignment. Each scenario contains specific questions that will ask you to provide examples, explain your suggestions for improvement, and refer to the lesson. Be sure to respond to each question in complete sentences.
Part I: Scenarios (select only one)

Answer 1

... what are u investigating...?

Answer 2

science this is earth space science

Answer 3

let me past what it is tho

Answer 4

...what? dude i can help u evaluate a design that u chose, but i cant choose a design for u...?

Answer 5

how do i do it

Answer 6

Christopher and Kate noticed that after a rainstorm some of the rocks in their yard appear to shrink. They wondered how the mass of the rocks changed when dissolved in water. To determine this, Kate purchased a variety of rocks from a local shop, carefully recording the types of rocks in a data chart. Christopher gathered rocks from the backyard to add to the rocks Kate purchased. They measured each rock's initial mass; then they inserted the rocks one by one into 100 milliliters of water and measured the mass of each rock after it had sat in the water for five minutes. Both Christopher and Kate concluded that store-bought rocks do not dissolve in water. They also concluded that to get rocks that dissolve in water they must be gathered directly from the yard.

Answer 7

ok dude, so thats the one u wanna go with?

Answer 8

no hold on let me see my other choices

Answer 9

yes thats it

Answer 10

so evaluate their experiment...
U ever bought rock salt from the shops?
or just plain table salt (it's still a type of rock)

Answer 11

yes

Answer 12

but i really dont understand

Answer 13

Each scenario contains "*****specific questions***** that will ask you to provide examples, explain your suggestions for improvement, and refer to the lesson.

Answer 14

im really stupid i dont understand

Answer 15

dont say that dumbass or you'll start believing it

Just bear with me a sec:
Scientific Method is
Observation ---> Hypothesis ---> Testing --->Conclusion

Answer 16

ok

Answer 17

r u stiill there

Answer 18

so someone sees / notices something ie rainbow during storm at 4pm
they get curious (what made the rainbow)?)
they form a hypothesis (rainbow came from 4pm sunlight)
testing (build a mini rain-maker, try to produce rainbow at other times of the day)
analysis (made a rainbow at 10, 11, 12, 1, 2, and 3pm)
conclusion (rainbows dont come from only 4pm sunlight, but do come from sunlight reflecting through falling water)

Answer 19

this is scientific method in progress

Answer 20

so our guys: Chris and Katie
What was their Observation?

Answer 21

i told you im stupid i still dont understand i have like the faster version of downsindrome

Answer 22

if u had to sum it up in 5 words or less ;D

Answer 23

dustin: what did Chris and Katie first see?

Answer 24

they observe that the rainbow is there after rain

Answer 25

no, that was my experiment dude, it was just an example
yours is
Christopher and Kate noticed that after a rainstorm some of the rocks in their yard appear to shrink. They wondered how the mass of the rocks changed when dissolved in water. To determine this, Kate purchased a variety of rocks from a local shop, carefully recording the types of rocks in a data chart. Christopher gathered rocks from the backyard to add to the rocks Kate purchased. They measured each rock's initial mass; then they inserted the rocks one by one into 100 milliliters of water and measured the mass of each rock after it had sat in the water for five minutes. Both Christopher and Kate concluded that store-bought rocks do not dissolve in water. They also concluded that to get rocks that dissolve in water they must be gathered directly from the yard.

Answer 26

they observed that the rocks got smaller

Answer 27

sweet, perfect man

Answer 28

so Observation --> rocks shrink

now: Hypothesis... what reason did they guess for the rocks shrinking?

Answer 29

the hhypothosis is that the rocks started to wither durung raain storms

Answer 30

pretty much, simple version is
Rocks shrink in water
or
Rocks dissolve in water

Answer 31

yea so what else now i have atable i guess im supposed to put them on

Answer 32

ok, sure, i'm just giving u the steps tho dude, what u have to do after i'm not sure...
so we have
Observation
and
Hypothesis
so far
now: Testing or Experiment
What was their Experiment to test the Hypothesis?

Answer 33

they went to get rocks from the store so that they could test it themselves>>?

Answer 34

perfect

Answer 35

experiment:
1 Bought rocks from store
2 immersed in water
3 weighed before and after
4 recorded how much lighter the rocks were

Answer 36

do you have an email bro>>?

Answer 37

nah dude, only one and i dont give it to strangers, sorry

Answer 38

is this not helping tho...?

Answer 39

yes but i was gonna send you all the info in an attachment file>>?

Answer 40

sáll good, there's an attach file right here
I
I
\/

Answer 41

@Jack1 you see it>>>>>>>>?

Answer 42

yeah dude, readin it now

Answer 43

finished>>?

g

Answer 44

cools, so for part 1: run through the table the gave u for part 2 (observation, hypothesis, experiment, analysis, conclusion) and list what they did for each like we've been doing above

then list what u think they did wrong:
my thoughts here would be that their conclusion was whay off, because they didn't look at what TYPE of rocks they were buying

Answer 45

so if they'd look at different types of rocks, and maybe stirring the water, they'd see more changes

Answer 46

lol ok and thats for prt one right>>?

Answer 47

so their conclusion was off because they only went to one store, they grouped it wrong (store rocks VS garden rocks) and the didnt stir the water (things dissolve better in moving water)

Answer 48

where do i write that>>>>>>>>>>? lloll sorry btw remembe what condition im in

Answer 49

right, part one
so then offer fixes for their experiment:
group rocks as TYPES: ie by colour, texture, how hard they are, what they're made of if possible, and different temperature waters and different lengths of time in the water
and base conclusion on all the different conditions u put the rocks through, not just the one that Chris and Katie did

Answer 50

u write all that as a paragraph or 2 for part 1 of assignment
g2g. slaters and good luck dude @momacetanumber01

Answer 51

huh???????????????????? weha u goinggggg no you were my onlyyyyy hope lol

Answer 52

nah dude, u'll be fine, i believe in u

Answer 53

lmaooooooooooooooooooooo this is sooooooooooooo harddddddddddddddddddddddddddddddd