Fun science games for all grades: http://education.jlab.org/indexpages/elementgames.html
Here is the link for SBAC practice. http://idaho.portal.airast.org/training-tests/
5. Josh has two leaking pipes in his basement. While waiting for the plumber to come, Josh puts a bucket under each leak. The two buckets each hold the same amount of water. The bucket under the first leak fills in 20 minutes. The bucket under the second leak fills in 35 minutes. Josh’s brother takes away one of the buckets and places the one bucket under the two leaks. About how long will it take for the one bucket to fill completely?