Science Essentials

The diagram below shows a ball held in place by two blocks. the diameter (width) of the ball is shown between the two blocks. What is the diameter of just the ball?

• 6.0 cm

• 8.0 cm

• 14.0 cm

• 17.0 cm

The diagram below shows a triple beam balance. What is the maximum mass, in grams, the could be measured by this balance?

• 110 g

• 500 g

• 610 g

• 1510 g

The diagram shows water in a graduated cylinder. A student states that the graduated cylinder contains 150 mL of water. This statement is

• a prediction

• an observation

• a theory

• a hypothesis

The data table below shows that as the pressure of a gas sample was changed, the volume of the gas changed. The pressure was measured in atmospheres (atm) and the volume was measured in milliliters (mL). According to the data table, as the pressure of the gas increases, the volume of the gas...

• increases

• decreases

• stays the same

Tags

NGSS.MS-PS2-2

The diagram shows 20 g of two different materials, A and B, on a laboratory balance. Compared to material A, material B has a different...

• density

• mass

• phase

• shape

Tags

NGSS.MS-PS1-2

A student set up the experiment shown to determine if radish seeds take in oxygen as they germinate (grow). Methylene Blue is a chemical that is blue when oxygen is present, but clear when oxygen is not present. Containers A and B each contained 200 mL of water and 10 drops of Mathylene Blue. Ten radish were added to container A, container B had no radish seeds. The purpose of container B (no radish seeds) in this experiment was to

• serve as the control container

• serve as the experimental container

• show that seeds do not give off oxygen

• show that seeds do not give off carbon dioxide

Which statement is an inference?

• A thermometer shows that the air temperature is 56^oF

• A mineral sample of galena produced a gray-black streak when tested

• Based on previous data, ten hurricanes might occur next year

• A weather vane indicates the wind is blowing west

Tags

NGSS.MS-ESS3-2

The graph shows a runner's distance from the starting line during a 30-minute race. Distance was measured in meters (m). Time was measured in minutes (min). During which time interval was the runner moving at the greatest speed (the most rapid change)?

• 0-5 min

• 10-15 min

• 15-20 min

• 25-30 min

Tags

NGSS.MS-PS3-1

A block has a mass of 100 g and a volume of 200 cm³. What is the density of the block?

• 2 g/cm³

• 1 g/cm³

• 0.5 g/cm³

• 20 g/cm³

Given the following graduated cylinder, what is the volume of water?

• 38 mL

• 36 mL

• 40 mL

• 42 mL