This activity is very similar to the linked Englipedia activity. Instead of saying "survivors," the students can say "person," "people," or whatever the item is. This is to practice words they know and are more likely to use. My vision for how to play the game is also different from the original, so feel free to use either method (or your own).
0) If necessary, review some prepositions before playing the game.
1) Split the class into groups of 3 or 4 depending on class size, the level of the students, and how many groups you want to be active at once during the activity.
2) Give each student the worksheet and explain what they're doing. An airplane has crashed into the empty classroom, and the students are helping to search the area. Everyone on the plane is safe, but they have to find them. The students are not official rescue people, so they can't take anything or move anything. However, they can write a report to help with the rescue.
3) One member from each group will go into the empty classroom and search for an item or person. Once they've found something, they come back and report to their group what they found. They have to say "There is a ~" or "There are ~" and specify where the item is. For example, "There is an apple under the desk." or "There are three phones by the window."
4) All group members write down where the item they searched for is and then a different group member goes to the empty classroom.
5) After some time (15 - 20 minutes should be enough), have the groups take turns reading off one of their sentences. After Group A reads their first sentence, have everyone check if they have the same location / if it's correct. If it's correct, all the groups with the same sentence get a point. Next, Group B reads a sentence, and this continues until everything has been found.