What is this?
a microscope
What is this?
a ruler
What is this?
a notebook
What is this?
a hand lens
What are these?
googles
Who is this?
a scientist
what is this?
a beaker
What are these?
scissors
what is this?
a balance
what is this?
a flashlight
What is the scientist doing?
he is observing
What is the scientist doing?
he is measuring
What is the scientist doing?
he is writing a report
What is the scientist doing?
he is comparing
What is the scientist doing?
he is asking questions
What is the scientist doing?
he is hearing sounds
