Students stand in lines – one opposite the other. Each student from the first line faces another student from the second line. Each pair touch their palms and try to lean. Then gradually they increase the distance until it becomes impossible to stand in this position. Some can stay longer so it means they can trust each other more than the others.

Ask the students to form pairs. Each pair sits on the ground back to back. They try to stand without touching the ground. They hold their hands and stand up simultaneously.

Students are divided into groups of 5-6. Each group is given 50 straws for drinking. They have to build a gate which lets them travel through time and space in order to find a better place to live. Each of the team have to go through the gate without knocking it down. If it happens, they have to re-build it and go through it again.

The students have arrived to a new planet and they reached an acid river. They have six flat pieces of planks to cross it /you can use sheets of paper or cardboard instead/. You draw the banks of the river and divide the students in teams. Each contestant has to cross by stepping on the pieces. The problem is that the team has to collect all the pieces because the river is too fast and they will have to cross it again on their way back.

Solution – the first from the team carries all the sheets and places one sheet of paper and steps on it. Then places the next sheet and moves on it. The second contestant steps on the first sheet and then moves on when he second piece is left by the first contestant. Then comes the third player and so on. The last one collects all the sheets.