What is the best explanation of motion?
An object changing position over time
A river washing away a bank
Grass growing in the sunlight
A gear turning in a machine
The heterodon had large, sharp canine teeth. What type of food did this dinosaur most likely eat?
Grass
Meat
Fish
Mushrooms
Which organism could replace grasshopper in the food web below?
Shark
Bat
Ladybug
Worm
A tiger, a chimpanzee, and a bear all belong to the same group because they all have
opposable thumbs.
large paws.
stripes.
fur.
Intensity is another way to describe a sound's
duration.
pitch.
volume.
length.
