WCAS Science Test Prep

The model shows a process that occurs in a tomato plant

A process Occurring in a Tomato Plant

Which labels correctly complete the model to help describe this process?

• water sunlight stored energy

• sunlight stored energy water

• sunlight water stored energy

• stored energy water e.sunlight

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which statement best describes an effect of humans on this food web?

• the population of bald eagles may be reduced by humans consuming too many smelt.

• Competition among humans, alewife, and smelt decreases food availability for bald eagles

• Humans decrease the populations of phytoplankton and zooplankton by consuming chinook salmon

• Human consumption of coho salmon and chinook salmon may reduce food sources for herring gulls

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Look into the sky on a clear night and you may be able to observe the Moon, or part of it, lit up by the Sun. People can keep track of the Moon's appearance from Earth in lunar calendars. This makes it easy to see how the appearance of the Moon changes over time. A student made the following lunar calendar for 16 days, but it was cloudy on several nights.

A student is studying the partial lunar calendar. Which sequence of moon phases correctly represents the pattern in the appearance of the moon and completes the calendar?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-1

The diagram below represents the saltwater solution made by the student. When salt (NaCl) molecules are added to water (H2O), they break into one sodium (Na) particle and one chlorine (Cl) particle.

Chose the name of the solvent and solute

• Solute = H2O Solvent=NaCI

• Solvent = H2O Solute= NaCl

Tags

NGSS.MS-PS1-1

A student needs to separate a mixture compsed of iron fillings and sand. How can the student most easily separate all the iron fillings from the mixture?

• Use a magnet to attract the iron filings

• Use filter paper to isolate the iron filings

• Add water to the mixture and pour off the floating iron filings.

• Add water to the mixture and allow it to evaporate and leave behind the iron filings

A student is identifying properties of chemical particles by using the chart below. Complete the chart by selecting boxes to identify each property as a description of an atom, a molecule, or both

Properties of Particles

Which are composed of more than one particle?

• atom

• molecule

• Hydrogen

Tags

NGSS.MS-PS1-1

Two words that correctly identify properties of these planets

Uranus -Neptune- Saturn- Jupiter

• rocky

• gaseous

• large

• small

Which statement identifies the most likely outcome if the rabbit population suddenly reduced?

• Owls would become extinct because they have no food

• Hawks would have less food available so their population would decrease

• Grasshoppers would have less food available so their population would decrease

• Grasses in the area would die and all of the animals would have to move to another area to survive

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The diagram shows four blocks of the same size in a water tank. Block Y has the same density as the water.

Four additional block are being added to the water as detailed (Block J= 1kg) - (Block K =3 kg)- (Block L=5 kg)-(Block M=7kg)

Pick two answers choices - the two blocks that will float and two blocks that will sink.

• BLOCK J & K WILL FLOAT

• BLOCK J & K WILL SINK

• BLOCK L & M WILL SINK

• BLOCK L & M WILL FLOAT

A group of students was challenged to construct a boat that could transport 10 milliliters (13.38 grams) of corn syrup across a small, plastic swimming pool. Which question will best help the students design their boat?

• What is the mass of the boat and the corn syrup?

• What force is need to push the boat across the length of the pool?

• What boat shape is needed to lower the density of the boat and the corn syrup?

• What is the distance from one point of the pool to the point on the exact opposite side?

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-2