The Viafocus library
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Beginner
OtherGrades 4, 5, 6
Heartbeat Boat — Why do rowers need a drummer?
12 questions · 8 min
VViafocus5.0
Beginner
TechnologyGrades 4, 5, 6
Ghost Jam — Why do traffic jams happen with no crash?
14 questions · 7 min
VViafocus
Beginner
TechnologyGrades 4, 5, 6
The Mind Reader — How can a machine predict what you will do next?
11 questions · 12 min
VViafocus
Beginner
ScienceGrades 4, 5, 6
Räkna åskan — hur långt bort är blixten?
10 questions · 8 min
VViafocus5.0
Beginner
OtherGrades 4, 5, 6, 7
Half a String
16 questions · 12 min
VViafocus
Beginner
TechnologyGrades 4, 5, 6
The Key That Fits — How does a key open a lock?
13 questions · 10 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
Language ArtsGrades 4, 5, 6
Utanför bilden — hur kan en bild ljuga? Källkritik för åk 4–6
27 questions · 14 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
ArtGrades 4, 5, 6
It Goes On Forever — What is a vanishing point, and how does one-point perspective work?
15 min
VViafocus
Beginner
ScienceGrades 4, 5, 6
Get the Cat Back — Why do steel ships float?
13 questions · 7 min
VViafocus
Beginner
HistoryGrades 4, 5, 6
The Wall That Spoke — how did we learn to read Egyptian hieroglyphs?
11 questions · 12 min
VViafocus