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Darrell Barnes science, nature and technology channel: Dr.


00:09
Mr. Montgomery demonstrates Lenz's law
00:20
Ants scavenging a beetle
00:10
Can Bermuda grass grow anywhere?
00:54
Reason I like American hollies
00:47
What animal made this mound?
01:23
Thinking ahead when planting shrubs | Landscaping
00:15
This tree root looks like a snake to me
00:21
How ants talk | How ants notify their friends
00:15
Ants love to share
00:30
Identify these two trees
01:35
What is the heavy metallic burning smell in the Memphis area?
02:42
Create a graph in Pearson physics orientation y = mx + b
00:16
Mama and baby ducklings
00:19
Ant carrying a heavy load
00:25
Unconcerned cat; irritated mockingbird
00:43
Sorting Hat | Barnes, Holt and Correro
04:32
Where is the badge and proof of my ACUE microcredential? #brotherbarnes
00:53
Printing overall record of progress in ACUE #brotherbarnes
02:42
How to upload an ACUE microcredential to LinkedIn Version 1 #brotherbarnes
00:24
Mississippi edibles | unripe #brotherbarnes
00:21
Walkabout: Black locust flower and green wild cherries #brotherbarnes
04:32
Specific heat calculation $ thodown #2
05:16
Experimental error $ thodown #2
02:18
Logjam versus little saw
00:54
Not today, Maytes!
03:19
Lab 16 Grahams law calculations | tape to page 191
01:53
Lab 16 Grahams law setup and data
04:31
Labs 12, 13 and 16 | $$: Specific heat and experimental error examples | $$
00:29
Crows don't like raw onions with ketchup
00:45
Lab 10 pH $ calculation in the TI30XIIS | $
00:51
Best team for Mars
02:52
Percent by volume with verbal video corrections | solving for v #thanatobarnes
05:56
Lab 9 grams of copper sulfate in copper sulfate pentahydrate
00:16
Crystallization of NaOH
01:25
Lab 9 CuO precipitation reaction goes sideways
00:31
Pink petal mystery solved?
01:47
Drawing XeF4 using the Pearson MyLabandMastering structure drawing tool
03:49
Drawing CH3NO2 resonance structures with Pearson MyLabandMastering tool
05:11
Drawing nitrite resonance structures with the Pearson MyLabandMastering tool
01:30
Drawing CO with the Pearson MyLabandMastering tool
01:29
Zoom out to enter a long chemical equation in Pearson MyLabandMastering
01:11
Plop! #brotherbarnes
00:42
Pink fades to white #brotherbarnes
00:37
Lab 8 the bunsen burner did this to the iron cube
00:32
Lab 8 the bunsen burner did this to the aluminum cube
00:16
Lab 8 How to pick out iron with a magnet
00:43
Lab 8 Setup 1b solubility
00:46
Lab 9 copper compound precipitation reaction preview
00:58
Iron and sulfur react | test tube | caution! Lab 8
07:10
Calibrating the Atomic absorption spectrophotometer
04:03
Atomic absorption spectrometer usage explained
00:47
AP 2 Lab Quick Review 19 redo Feb 2022
02:29
Why I love the Pearson Tro General Chemistry textbook | Aha!
00:20
Nicely oxidized magnesium ribbon
00:16
Heat from the Hadean realm
00:15
We had to turn the heat up on this one to get it to burn
00:12
This magnesium is still reacting
00:09
Magnesium on fire in the crucible | Lab 7
02:47
Magnesium oxide experiment setup | Lab 7
00:59
Dr. Thimm explains the pipette bulb | Lab 4