a zinc coated plate (100cm x 8cm), sticky tape (breadth at least 2 cm), yard stick, 2 Petri dishes (100 x 20 x 5 cm), thermometer, hot water (approximately 60°C), water with ice, flea cancers, water snails etc.
Lead- through:
Creation of a temperature organ
First of all we measured the plate with the yard stick and made a mark in a distance of 1 cm. Then we took the sticky tape to bond it on the borders of the plate.
We marked the plate longitudinal with 10cm distance, so that we could see how far the animals go. Then we super scribe the markers with 0-10cm; 10-20cm etc.
The borders were bended with a tong, the walls should have a high of 2-3cm. The salient angles should also be bended.
To make it easier to bend the plate, we took two planks, put the plate on them and beat with a hammer on it.
Keine Kommentare:
Kommentar veröffentlichen