Benchmark

A teacher pours water into a glass beaker. She heats the beaker and the liquid begins to boil. Soon it appears as if there is no liquid left in the beaker.

Stephanie claims that the water disappeared. Tony claims that the water did not disappear. Which student’s claim is accurate? Explain.

• Stephanie - the water disappeared because we can no longer see it

• Stephanie - the water disappeared because the beaker weighs less

• Tony - the water didn't disappear, it just changed forms

• Tony - the water didn't disappear, the beaker absorbed it

Tags

NGSS.MS-PS1-4

Which TWO statements are TRUE based on the picture provided?

• Position 1 occurs when the Earth is lined up in between the Earth and Sun, and causes the Moon to appear to be the brightest.

• Position 5 occurs when the side of the Moon that is facing the Earth is lit by the Sun because the Earth is between the Sun and Moon.

• Positions 6, 7, and 8 occur when the part of the moon being lit by the Sun is increasing because the Moon is moving closer to the Sun.

• Positions 4 and 6 occur when the amount of light being reflected by the Sun is the greatest because Position 5 is when the Earth is between the Sun and Moon.

• Positions 2 and 8 are called the waxing and waning phases because these phases occur just after and before the Moon passes between the Sun and the Earth.

Tags

NGSS.MS-ESS1-1

In a controlled experiment, a scientist wants to test the effect of temperature on the solubility of a salt in water. What is the benchmark in this experiment?

• The amount of salt used

• The temperature of the water

• The type of salt used

• The solubility of the salt at room temperature

Tags

NGSS.MS-PS1-4

Which of the following is a benchmark used to measure the acidity of a solution?

• pH scale

• Litmus paper

• Universal indicator

• Molarity

In scientific research, what is the purpose of using a benchmark?

• To establish a standard for comparison

• To increase the complexity of the experiment

• To ensure the experiment is biased

• To eliminate the need for a control group

A scientist is comparing the growth rate of plants in different soil types. What would be considered a benchmark in this study?

• The type of plant used

• The growth rate of plants in standard soil

• The amount of sunlight each plant receives

• The watering schedule

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the benchmark for measuring the speed of light in a vacuum?

Tags

NGSS.MS-PS4-2

In the context of climate studies, what is a benchmark used for?

• To predict future climate patterns

• To compare current climate data with historical data

• To eliminate errors in data collection

• To increase the accuracy of weather forecasts

Tags

NGSS.HS-ESS3-5

Which of the following is a benchmark for determining the boiling point of water at sea level?

In physics, what is the benchmark for measuring gravitational acceleration on Earth?