Science Practice I

At what temperature did bread mold the slowest?

• 20

• 40

• 60

• 100

• One unit of magnesium is consumed, one unit of magnesium oxide is produced.

• Two units of oxygen are consumed, two units of magnesium oxide are produced.

• Two units of magnesium are consumed, one unit of magnesium oxie is produced.

• One unit of oxygen is consumed, two units of magnesium oxide are produced.

Which conclusion is supported by the data in the graph?

• Solubility always increases as temperature increases.

• At 40°C, KCl has the highest solubility of the salts in the table

• . The solubility of NaCl does not increase with increasing temperatures above 80°C.

The square above is based on the eye color of two parents. One of the parents has brown eyes and carries the recessive gene for green eyes (a). What is the probability that a biological child of these parents will have brown eyes?

• 0%

• 25%

• 50%

• 100%

Which statement correctly describes the flow of energy through this pyramid?

• A. All of the energy from the lower levels is available to the top level

• The producer level directly provides energy for all of the other levels

• The highest amount of energy is transferred between levels that contain consumers.

• Energy is directly transferred from the primary consumers to the secondary consumers.

What is the difference, in feet, between the minimum and maximum heights of a car on the ferris wheel?

• 0

• 3.5

• 140

• 150

During what period of time was the car experiencing a constant positive acceleration?

• Between 0 and 20 seconds

• Between 20 and 40 seconds

• Between 40 and 50 seconds

• Between 50 and 90 seconds

A news reporter in a city with several carbon-emitting power plants wanted to see if local temperatures matched global climate change trends. He focused on the four coldest months of the year.

The table shows local temperature data from November to February for the two consecutive cold seasons verified by the reporter. How did the average temperature change between the two cold seasons?

• it decreased by 1.4°

• it increased by 0.3°

• it increased by 0.9°

• it increased by 3.7°

According to Figure 1, the mass of cheese remaining at 4 hr was closest to which of the following values?

• 140 mg

• 176 mg

• 185 mg

• 190 mg

The foods listed in Figure 1 are listed in order of the percent by mass of proteins, lowest to highest. As the percent of mass of proteins increased, the mass of food remaining at 28 hr:

• decreased only.

• increased only.

• decreased and then increased.

• increased and then decreased.