59
/ 100
Mixed
Watermelon snow appears in spring and summer, is pink and smells like watermelon, caused by algae Chlamydomonas nivalis containing astaxanthin.
Infact verdict: Mixed (59/100).
The claims about watermelon snow are generally supported by evidence. Watermelon snow appears in late spring and summer due to the algae Chlamydomonas nivalis, which gives it a pink color and a watermelon-like smell. This algae contains the red pigment astaxanthin, which is well-documented. The evidence from reliable sources like Wikipedia and other scientific articles corroborates these claims.
How is this score determined? →Individual claims
91
True
Environment
Watermelon snow appears only in spring and summer.
Multiple reliable sources, including Crater Lake National Park and Sawtooth Association, confirm that watermelon snow appears in late spring and summer due to the growth of Chlamydomonas nivalis. This aligns with the seasonal conditions required for the algae to thrive.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
90
Web Consensus Weight
40
Source Quality Score
85
Source Quality Weight
20
Llm Reasoning Score
80
Llm Reasoning Weight
40
Llm Reasoning Score Raw
80
Weighted Total
91
Evidence Summary
3 web sources confirm seasonal appearance.
91
True
Environment
Watermelon snow has a pink color and a watermelon smell.
The claim is supported by multiple sources, including Wikipedia and The Brain Maze, which describe watermelon snow as having a pink color and a watermelon-like smell due to the presence of Chlamydomonas nivalis.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
90
Web Consensus Weight
40
Source Quality Score
85
Source Quality Weight
20
Llm Reasoning Score
80
Llm Reasoning Weight
40
Llm Reasoning Score Raw
80
Weighted Total
91
Evidence Summary
3 web sources confirm color and smell.
27
Mostly False
Science
Watermelon snow is caused by algae called Chlamydomonas nivalis.
This is a well-documented scientific fact supported by reliable sources such as Wikipedia and Polarpedia, which confirm that watermelon snow is caused by Chlamydomonas nivalis.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
None
Web Consensus Weight
40
Source Quality Score
None
Source Quality Weight
20
Llm Reasoning Score
50
Llm Reasoning Weight
40
Llm Reasoning Score Raw
None
Weighted Total
27
Evidence Summary
None
27
Mostly False
Science
Chlamydomonas nivalis contain the red pigment astaxanthin.
Reliable sources such as Wikipedia and scientific articles confirm that Chlamydomonas nivalis contains astaxanthin, which is responsible for the red coloration of watermelon snow.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
None
Web Consensus Weight
40
Source Quality Score
None
Source Quality Weight
20
Llm Reasoning Score
50
Llm Reasoning Weight
40
Llm Reasoning Score Raw
None
Weighted Total
27
Evidence Summary
None
