Holiday World

http://www.holidayworld.com/rides/reindeer-games

History of rollercoasters: http://www.ehow.com/video_4997808_history-roller-coasters.html

Make a rollercoaster:http://pbskids.org/zoom/activities/sci/rollercoaster.html

Robots

http://www.sciencekids.co.nz/sciencefacts/technology/historyofrobotics.html

Animal Detective

http://video.nationalgeographic.com/video/kids/animals-pets-kids/wild-detectives-kids/wd-ep1-detectivedog/

Pet Detective Game: http://kids.discovery.com/games/just-for-fun/pet-detective

An animal detective: http://www.aspca.org/aspcakids/animal-careers/animal-cruelty-investigator.aspx