A frog sitting at the edge of a water puddle. The mud and dirt surrounding the pond is labeled A, the frog is labeled B, and the water is labeled C. Fill in the blank with the correct sphere label. A: B: C:

What forms when chemical reactions combine pollution with sunlight?

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols