For this online interactive science worksheet, middle schoolers respond to 7 multiple choice questions regarding icebergs. Students may submit their answers to evaluated.

Teaches addition and subtraction facts up to twenty using animated penguins. The penguins jump between two icebergs to show addition facts for the given total. For subtraction facts the penguins dive off the iceberg into the water below....

Practice your arithmetic skills as you estimate the answer to questions involving addition, subtraction, multiplication, and division. Includes whole numbers, fractions, and percents. As you answer questions, you guide penguins across an...