GISN & STEM Professional's Blog - GLOBE International STEM Network

In most scientific research an important test is whether the results of an experiment can be repeated, typically repeated by another lab and research group. A result that cannot be confirmed in this way is generally viewed as invalid. This is a great test for controlled experiments where virtually identical experimental conditions may be achieved. In Earth science research involving observations of the natural world, experimental conditions cannot be reproduced. For environmental research the standard must switch for repeatable to intercomparable – capable of being compared. ...

Bird Beaks and What they Eat Overview:  Students identify ideal beak shape for food. Age: Upper primary (4th and 5th graders) assisted 1st graders Materials: Bird beak/food handout Straws Dixie cups Juice Tweezers Bowls Wild grain rice Slotted spoons Cooked noodles (macaroni or similarly shaped) Chopsticks Gummy bears White rice Scissors Marshmallows (jumbo) Plan: Ask students why birds have beaks and what they are used for - allow time for discussion. Read a book about beaks to the group. I used ...