Science Bee Practice - General Science

Front

What does bone meal supply to plants that makes them grow better?

Back

minerals

Front

Sensory messages are taken to the brain by ____________. Options: arteries and veins, arteries and hormones, nerve and hormones, muscles and veins

Back

nerve and hormones

Front

Alexander Fleming noticed that bacteria growing on a plate of agar did not grow next to a mold that was growing on the same plate. He wrote in his laboratory report “The mold may be producing a substance that kills bacteria”. This statement is best described as:

• an observation
• a hypothesis
• a generalization
• a conclusion

Back

a hypothesis

Front

Why do stars seem to twinkle?

Back

Light bends as it passes through layers of the atmosphere

Front

The oxygen-rich blood from the heart flows to the largest artery known as ___________.

Back

aorta

Front

What is the most important function of the blood?

Back

Carries food nutrients and oxygen to all parts of the body

Front

A beaker was filled with water up to 40 mL mark. A small stone was slowly lowered into the beaker and it was observed that the level rose to 45 ml. What does the change in the level of the water represent?

Back

volume of stone

Front

The picture shows the three layers of the Earth. Where is it hottest?

Back

Layer B

Front

What layer of the earth is inferred to be liquid in form?

Back

outer core

Front

Why does boiling of water in a kettle overflow and spill?

Back

Water expands when heated