Search found 18 matches

by yellow_squirtle
August 6th, 2015, 1:09 pm
Forum: 2015 Question Marathons
Topic: Forensics C
Replies: 38
Views: 7739

Re: Forensics C

Light travels from air into a glass fragment with an angle of incidence of 42 degrees. The angle of refraction at the end of the fragment is 18 degrees.
Calculate the index of refraction of the glass. Round to the nearest hundredth.
by yellow_squirtle
August 6th, 2015, 12:53 pm
Forum: 2015 Question Marathons
Topic: Forensics C
Replies: 38
Views: 7739

Re: Forensics C

samlan16 wrote:Suppose that you are given a powder which burns red in a standard propane flame. What is the cation in that compound?
Li +
by yellow_squirtle
August 6th, 2015, 12:31 pm
Forum: 2015 Invitationals, Regionals, and States
Topic: Texas 2015
Replies: 137
Views: 32212

Re: Texas 2015

Is CyFalls open to Division B this year? Also, has anyone here succeeded in accessing the school's scioly website?
by yellow_squirtle
September 15th, 2014, 8:55 pm
Forum: 2015 Question Marathons
Topic: Fossils B/C
Replies: 289
Views: 49216

Re: Fossils B/C

Correct :D
by yellow_squirtle
September 13th, 2014, 2:45 pm
Forum: 2015 Question Marathons
Topic: Fossils B/C
Replies: 289
Views: 49216

Re: Fossils B/C

What major event led to the extinction of most graptolites?
by yellow_squirtle
September 13th, 2014, 1:21 pm
Forum: 2015 Question Marathons
Topic: Fossils B/C
Replies: 289
Views: 49216

Re: Fossils B/C

Devonian Period
by yellow_squirtle
September 12th, 2014, 8:55 pm
Forum: 2015 Question Marathons
Topic: Fossils B/C
Replies: 289
Views: 49216

Re: Fossils B/C

Genus?
Image
by yellow_squirtle
September 10th, 2014, 8:41 pm
Forum: 2015 Question Marathons
Topic: Fossils B/C
Replies: 289
Views: 49216

Re: Fossils B/C

{gryphaea, aka"devil's toenail"}

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