Science Personnel Log by Soorya Th

H2O Chart.

st281991 — 2024-08-26 18:31:35 UTC

Testable Question

st281991 — 2024-08-26 18:34:35 UTC

Does the seeds germinate within 72 Hours?

Hypothesis

st281991 — 2024-08-26 18:35:31 UTC

(H1) The water does affect whether the seeds Germinate.

(H0) The water does NOT affect whether the seeds Germinate.

Data Table

st281991 — 2024-08-26 18:37:52 UTC

Question - Rephrase

st281991 — 2024-08-26 18:38:16 UTC

Did the different volumes of Water affect actually affect the germination process?

Hypothesis - Ans.

st281991 — 2024-08-26 18:39:03 UTC

The Water did, in fact, affect the germination process (H1).

Procedure

st281991 — 2024-08-26 18:41:46 UTC

Leave different groups of seeds in petre dishes, one group with 5ml, another 10ml, 15ml, and 20ml over 72 hours (the weekend!) and on the window sill in the sunlight to see if the levels of water helped confirm the hypothesis or not.

Germination - CER

st281991 — 2024-08-27 03:37:50 UTC

The water did affect the Gremination process (claim). When looking at each of the petre dishes after 72 hours we could see that there difference between each petre dish, since it ranged from 5ml of water to 20ml. We found that not many in 5ml water actually sprouted/germinated, whilst almost all germinated with 20ml of water and 15ml (evidence). This evidence clearly shows that the water did impact the amount of seeds germinated, and in broader terms the germination process, because the fact that 5ml water caused little germination among seeds whilst 20ml caused many more to germinate clearly shows that the hypothesis that the amount / level of water does affect the germination process, is correct (reasoning).

Claim -> Evidence -> Reasoning

st281991 — 2024-08-27 18:28:30 UTC

Claim

------

Water does affect the # of seeds germinated.

Evidence

----------

-> 10ml --> 8 seeds

-> 5ml --> 1.8 seeds

--> No overlap between 5ml and 15ml ERROR bars.

Reasoning

------------

--> Water explanes seed.

--> Delivers O2 to Seed.

--> Activates ENXYMES for respiration.

--> Catalyst To speed RXN...

Testable Question:

st281991 — 2024-08-29 18:32:19 UTC

Does moisture affect the number of Isopods in the chamber?

Hypothesis

st281991 — 2024-08-29 18:33:14 UTC

Ho --> H2O will not affect # of Bugs.

HI --> H2O Will affect the # of Bugs.

Procedure:

st281991 — 2024-08-29 18:36:05 UTC

Five Isopods in a hourglass like chamber, with okne end being wet & the other being dry. There are five Isopods in each chamber, we need to see which side is more popular.

st281991 — 2024-08-30 18:13:15 UTC

Dry vs Wet --> CER

st281991 — 2024-08-30 18:21:43 UTC

The data here shows that Isopods do not have a defining prefernce between Wet & Dry environments. This statement/claim is confirmed since the means were only around 0.1 separated, which is obviously a very small difference and shows that Isopods do not see wet and dry environments and white and black; they do not have defining preferences.

Data Table

st281991 — 2024-08-30 18:23:33 UTC

Dry vs Wet & Isopods statistics.

st281991 — 2024-08-30 18:25:08 UTC

Testable Question

st281991 — 2024-08-30 18:26:22 UTC

Do Isopods prefer Vinegar or Water?

Rephrase Question

st281991 — 2024-09-08 21:02:15 UTC

Do Isopods truly care about the moisture levels in the chamber on either sides?

Hypothesis Final Answer.

st281991 — 2024-09-08 21:07:24 UTC

The H20 did not affect the # of Bugs (group 4).

-Ho.

Hypothesis

st281991 — 2024-09-08 23:25:49 UTC

Ho --> There is no preference

H1 --> There is a preference.

Procedure

st281991 — 2024-09-08 23:27:10 UTC

There will be, like the Water & Bugs experiment, five bugs on either side in the chamber, except on one side there will be Vinegar and on the other side there will be water. Our objective to to see if there is an active affect or preference.

Water vs Vinegar CER

st281991 — 2024-09-08 23:33:17 UTC

The Isopods largely preferred the non-acidic water side of the chamber instea dof the Vinegar. This is evidently true since if we were to look at the overall mean or average, we can see that the non-acidic by far takes the lead. In our experiment, we also saw that the Isopods largely preferred the water compared to the Vinegar. The evidence shows that Isopods in general have a stronger preference towards non-acidic elements such as water, making it much more likely that the average Isopod will prefer water over Vinegar which is exactky what happened with our experiment.

Rephrased Testable Question:

st281991 — 2024-09-08 23:34:43 UTC

Is there a general preference on either Water or Vinegor for Isopods?

Hypothesis, Final Conclusion:

st281991 — 2024-09-08 23:37:55 UTC

H1 --> Yes. There is a Preference, strongly.

Testable Question

st281991 — 2024-09-18 18:47:34 UTC

Does N+P affect the Growth of the Duckweed.

Hypothesis

st281991 — 2024-09-18 18:48:42 UTC

Ho --> N+P does NOT affect the Growth of the Duckweed (Null).

H1--> N+P does affect the Duckweed Growth.

Procedure

st281991 — 2024-09-18 18:50:57 UTC

1) Take another tub/cup.

2) Fill both with water + same amount of Duckweed!

3) Put N+P in one (Leave the other).

4) Leave on windowsill with the Sun.

5) See which one had an affect, if any.

6) Record Results.

Data Table

st281991 — 2024-09-27 17:28:03 UTC

Testable Question - Rephrased

st281991 — 2024-09-27 17:29:42 UTC

Is the Growth of Duckweed affected by N+P?

Hypothesis - Final

st281991 — 2024-09-27 17:31:09 UTC

Ho --> No, N+P does NOT affect Duckweed Growth.

Bar graph of Lab Data

st281991 — 2024-09-27 17:32:11 UTC

Duckweed & N+P || C.E.R

st281991 — 2024-09-27 17:40:19 UTC

Fertilizer does not appear to have a clear impact on the duckweed. Because this is complimented by the Data Table and the Graph which shows little difference between the Duckweed grown with no Fertilizer, and Duckweed growing with Fertilizer. The errorbars also overlap oin the bargraph, which also shows that there is no clear difference. The given shows that there was no clear results between natural duckweed and duckweed grown alongside N+P, with the graph's errorbars a clear indicator that there is little difference and the similar values for the data table.

Testable Question

st281991 — 2024-10-02 17:55:06 UTC

How does the proximity to water affect the biodiversity of the area?

Hypothesis

st281991 — 2024-10-02 17:56:11 UTC

Ho --> There isn't an affect.

H1 --> There is an affect.

!Procedure!

st281991 — 2024-10-02 17:57:20 UTC

Multiple traps are placed in certain areas, being the Hill, the Marsh, and finally, the Bridge. There are set up and hung on branches to catch bugs.

Bar Graph (1)

st281991 — 2024-10-02 17:58:05 UTC

Bar Graph (2)

st281991 — 2024-10-02 17:58:42 UTC

Final Hypothesis

st281991 — 2024-10-02 18:00:27 UTC

H1 --> There is an affect.

Rephrased Testable Question

st281991 — 2024-10-02 18:01:44 UTC

Does proximity to water influence or affect the biodiversity of a particular area?

CER

st281991 — 2024-10-02 18:07:39 UTC

Water level increases the bug diversity, this can be seen if we look at the Simpson diveristy index where we can see that both the bridge and the marshlands have much more diversity (for bugs), compared to a relatively dry hill. This evidence shows that water level does affect bug diversity since the areas with more water (bridge & marsh) have much more diversity than drier areas like the HILL.

Testable Question

st281991 — 2024-10-25 18:18:05 UTC

Does light affect tge CO2 levels in a container with spinach leaves.

Hypothesis

st281991 — 2024-10-25 18:19:20 UTC

Ho --> There is no affect on the CO2 levels.

H1 --> There is an affect on the CO2 levels.

!Procedure!

st281991 — 2024-10-25 18:23:35 UTC

(1): Put 20 Spinach leaves inside a clear container

(2): Attach the Vernier Sensor to the top.

(3): Pair the Vernier Sensor to the Chromebook.

(4): Set the experiment on a window sill.

(5): Collect Data.

FOR DARK EXPERIMENT -->

-Repeat process but wrap the experiment with tinfoil-

Bar Graph (1)

st281991 — 2024-10-25 18:26:01 UTC

Ave. Change in CO2 vs. Treatment.

Bar Graph (2)

st281991 — 2024-10-25 18:27:15 UTC

Ave. Change in CO2 vs. Treatment

Rephrased Testable Question

st281991 — 2024-10-25 18:29:22 UTC

Do CO2 levels in a container filled with... spinach leaves get affected via the amount of light.

Hypothesis (Finale)

st281991 — 2024-10-25 18:30:47 UTC

H1 --> Yes, the light affects the CO2 levels.

CO2 CER

st281991 — 2024-10-28 04:03:10 UTC

Light does affect the CO2 levels because of a factor known as photosynthesis. According to the table of Group data, the category known as "Leaves in Light," we can see the initial CO2 levels begin at 457 ppm (parts per million), and ends with a final CO2 ppm of just 20. Which is a change of 437. We can compare this to "Leaves in Dark," starts at 501ppm, ending at a staggering 1071, a CO2 change of 570. Finally, if we were to take a look at the "Control Dark" category, the initial CO2 is 691 ppm, ending at 662, with a small change of -29. From this evidence we can conclude that Light does affect the CO2 levels since none of these numbers/values are constants, rather they all vary, both at the initial CO2 levels, and the final CO2 levels with different values of change. This inconsistency confirms our Hypothesis that Light affects the CO2 levels.

Testable Question

st281991 — 2024-10-31 18:00:04 UTC

Does germination affect the amount of CO2 produced?

Hypothesis

st281991 — 2024-10-31 18:04:33 UTC

H/Alt: There will be an affect on the amount of CO2 produced in the chamber.

H/Null: There will not be a affect on the amount of CO2 being produced in the chamber.

Procedures

st281991 — 2024-10-31 18:12:49 UTC

STEPS FOR SEEDS

(1) Pair/Calibrate Vernier Sensor with Chromebook.

(2) Take a container.

(3) Fill with exactly 25 seeds.

(4) Stick the Sensor at the top.

(5) Record data.

Rephrased Testable Question

st281991 — 2024-10-31 18:36:06 UTC

Does Germination cause a difference with the rate of CO2 being created in the container?

Hypothesis (Finale)

st281991 — 2024-10-31 18:36:55 UTC

H/Alt: There will be an affect on the amount of CO2 produced in the chamber.

Data Graph (1)

st281991 — 2024-10-31 18:39:18 UTC

Data Graph (2)

st281991 — 2024-10-31 18:39:41 UTC

CER --> Cellular Respiration Lab

st281991 — 2024-11-06 05:24:36 UTC

Germination does affect the amount of CO2 produced in the chamber. According to the first data graph, we can see that when Germinating seeds are set into the chamber and the Vernier sensor stuck on top causes CO2 levels to slow but brief dip, and then rise, since the Germinating seeds spew out CO2 into the air, comparing this to the second graph with no Germinating seeds and we can see that the CO2 levels are stagnant. This shows us that Germination does affect CO2 levels, since the seeds that are Germinating are shown to have affect CO2 levels more overall than non-germinating seeds.

Testable Question

st281991 — 2024-11-26 19:11:27 UTC

How does concentration of sugar affect the % of mass change in the potato?

Hypothesis

st281991 — 2024-11-26 19:16:06 UTC

H1/Null: Concentration of Sugar does not affect the % of mass in the Potato.

H/Alt: Concentration does affect the % of mass in the Potato.

Claim

st281991 — 2024-11-26 19:17:53 UTC

Concentration of sucrose does affect % of mass change in potatos due to Osmosis.

Procedures

st281991 — 2024-11-26 19:22:46 UTC

STEPS FOR... POTATOES!

(1): Label cups 0, 0.2, 0.4, 0.6, & 0.8 .

(2): Set three potatoes in each cup.

(3): Put corresponding sugar in each cup.

(4): Put on window sill in the sun for 24H

(5): Record Data afterwards & observe.

Rephrased Testable Question

st281991 — 2024-11-26 19:24:23 UTC

Does Concentration of sugar affect the percentage in the cup of potatoes, three each?

Hypothesis (Finale)

st281991 — 2024-11-26 19:27:18 UTC

H/Alt: Concentration does, in fact, affect the % of mass in the potatoes.

% of Mass Change

st281991 — 2024-11-26 19:28:57 UTC

Class Averages

st281991 — 2024-11-26 19:29:43 UTC

CER --> Osmosis

st281991 — 2024-11-26 19:36:07 UTC

Concentration of sugar does affect the % of Mass in the potato. We can support this by taking a look at the Class Data, each of the starting Mass at Zero is all between 16-18, the default Mass. However, as the Mass slowly increases from 0 to 0.2, 0.4, 0.6, & 0.8, the Mass percent changes, from an original decline to a sharp decline. Another support for this is the Class Average chart, where the starting point is 17.4, and constantly experiences sharp declines, to 6.2, then -16.7, and decreasing further to a final value of -38.2. Based on this evidence, we can quickly conclude that the percent of Mass in fact changes because in both examples we can see them change from the original Mass percentage and declining ending with a value far different than their original.