The Viafocus library
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Beginner
ScienceGrades 4, 5, 6
Six Nights — Why do you have to finish your antibiotics even when you feel better?
11 questions · 9 min
VViafocus3.0
Beginner
OtherGrades 4, 5, 6
Glasmästarens fönster — hur stor del av figuren är färglagd?
11 questions · 12 min
VViafocus
Beginner
ScienceGrades 4, 5, 6
Catch the Fall — How do you balance on a bicycle?
26 questions · 15 min
VViafocus
Beginner
MathematicsGrades 4, 5, 6
The Last Slice — How does "I cut, you choose" work, and how do you split something fairly?
13 questions · 12 min
VViafocus5.0
Beginner
MathematicsGrades 4, 5, 6
The Short Order — Why does serving the quickest first make everyone wait less?
26 questions · 15 min
VViafocus4.0
Beginner
GeographyGrades 4, 5, 6
The Map Lied — Why does Greenland look as big as Africa on a world map?
13 questions · 12 min
VViafocus5.0
Beginner
OtherGrades 4, 5, 6
Repet och hagen — vad är omkrets och vad är skillnaden mot area?
13 questions · 12 min
VViafocus
Beginner
ScienceGrades 4, 5, 6
The Lunch Rush — What is a bottleneck, and why does one slow spot hold up the whole queue?
13 questions · 10 min
VViafocus
Beginner
ScienceGrades 4, 5, 6
Nobody Leads — How do thousands of birds fly in one flock without crashing?
12 min
VViafocus
Beginner
ScienceGrades 4, 5, 6
Räkna åskan — hur långt bort är blixten?
10 questions · 8 min
VViafocus5.0
Intermediate
TechnologyGrades 7, 8, 9
The Stitching Machine — How does AI learn from examples, and why does it make things up?
35 questions · 15 min
VViafocus
Beginner
ScienceGrades 4, 5, 6
The Wait — How does radar work, and how does it find a plane nobody can see?
29 questions · 16 min
VViafocus