Science Final Exam: Biology Unit AND Natural Disaster Unit

The _________ is enclosed in a membrane and directs ALL cell’s activities.

• nucelus

• mitochondria

• chloroplast

• vacuole

What is the jelly-like substance called that gives the cell shape and hold the cell’s parts?

• mitochondria

• vacuole

• cytoplasm

• chloroplast

_________ uses the energy from sunlight to make sugar.

• cytoplasm

• chloroplast

• vacuole

• nucleus

The ______________ surrounds and protects a plant cell.

• cell membrane

• cell wall

• vacuole

• nucelus

All cells have this and it surrounds the cell and controls what enters and leaves the cell.

• cell membrane

• cell wall

• mitochondria

• vacuole

"Because earthquakes and tornadoes are forces of nature, people have to deal with them as they come. The time or intensity of an earthquake cannot usually be predicted."

Can earthquakes time and intensity be predicted?

• no

• yes

"Earthquakes cannot be reliably predicted. While volcanic activity sometimes triggers earthquakes, many other earthquakes happen without warning. Fortunately, we do know the areas where earthquakes are most likely to occur."

What can sometimes trigger earthquakes?

• tornadoes

• hurricanes

• volcanic activity

• earthquakes

"If people are outside during an earthquake, it is best to get into an open spot. They should get away from buildings, power lines, and anything else that may fall and hurt them. Electrical lines which have already fallen are also dangerous—they may be capable of electrocuting people!"

Should people stay outside during an earthquake or run for their houses?

• stay put outside

• run for the nearest building

"While some places get tornadoes more than others, it is not easy to predict them. There may be warnings that they will happen, but tornadoes cannot be predicted in the same way rainstorms can, days before they happen."

Can tornadoes easily be predicted?

• yes

• no

"In order to be safe when a tornado does strike, people must already know where they will find shelter. Families and schools must have tornado drills and discuss where to go once a tornado has been spotted. The best place to go to is a basement. If there is no basement, then people should go into hallways or rooms with no windows on the ground floor."

Where is the best place to go during a tornado?

• classroom

• bedroom

• outside

• basement