Some plants grow better if bone meal (ground-up bones) is spread around their roots. What does bone meal supply to the plants that makes them grow better?

• energy

• minerals

• vitamins

• water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Sensory messages are taken to the brain by ____________.

• arteries and veins

• arteries and hormones

• nerve and hormones

• muscles and veins

Tags

NGSS.MS-LS1-8

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

Why do stars seem to twinkle?

• They are too hot

• Their size and color vary

• They are covered with clouds

• Light bends as it passes through layers of the atmosphere

Tags

NGSS.MS-PS4-2

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

• superior vena cava

• inferior vena cava

• coronary artery

• aorta

What is the most important function of the blood?

• Collects food nutrients and oxygen from the body

• Carries food nutrients and oxygen to all parts of the body

• Regulates the rise of the body temperature

• Carries impurities to the cells

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 represents?

• volume of water

• weight of the stone

• volume of stone

• weight of the stone

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

• Layer A

• Layer B

• . Layer C

• All 3 layers are the same temp

Tags

NGSS.MS-PS3-4

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

• crust

• mantle

• outer core

• inner core

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

• Water increases its volume when heated

• Water forms bubbles when heated

• Water expands when heated

• Water overflow when heated

Tags

NGSS.MS-PS1-4