muscles

1. MUSCLES
EXPERIMENTS BIOLOGY
LONE HAELEMEERSCH VIKTORVANDAELE
MORIGI MATTIA MURCY HELENE

2. WHEN ASTRONAUTS ARRIVE BACK
ON EARTH THEY HAVE TROUBLES
STANDING UP AND WALKING. WHY?
For this experiment we need a scale
And now…LET’S FINDTOGETHER!

3. OPERATION AND DESCRIPTION OF
THE EXPERIMENT
 a) Measure your mass standing up
straight on a scale.
 b) Put the scale vertical against the wall.
Lie down on your back with your feet
against the scale. Push your legs against
the scale.What’s your mass now?
 c) Describe the difference (you feel) in
your legs standing up or lying down.

4. NOW IT’S THE TURN OF ITALY

5. RESULTS
AND
CONCLUSION
S
1. The mass standing up
straight on a scale is 50
kg.
2. While the mass lying
down is only 5 kg.
3. He can’t apply enough
force on the scale when
he is lying down.

6. Obviously, even if the masses are
different, the principle and the results are
the same

7. EXPLANATION
 The astronauts collapse because there is
almost no gravity in space.Their muscles and
their body have become accustomed to space.
Therefore it feels like they are being pushed
into the ground on Earth, so they can't walk .
During their stay in space, astronauts have to
use their muscles less cause there's less gravity.
This causes atrophy of the muscles.When they
arrive back on Earth, the amount of muscles is
so small they can’t stand up or walk.After a
while, they can walk again
vv

8. ViktorVandaele
(Belgium)
Lone Haelemeersch
(Belgium)
Murcy Helene
(Italy)
Morigi Mattia
(Italy)
Experiment
done by