FREE ISASP Science Questions and Answers

Question 1

Students created an experiment to investigate what happens to water when it freezes. They filled multiple plastic containers of the same size with 50 milliliters (mL) of pure water. They placed each container in the freezer after covering it. Once the water became frozen, they measured the amount of ice present in each container.

Although the right procedures were followed, a student accidentally filled her container with 60 mL of water.

Which of these volumes of ice did she most likely observe once she took it out of the freezer?

Accepted Answer

60 mL

Answer

65 mL

Answer

50 mL

Answer

55 mL

Question 2

Students created an experiment to investigate what happens to water when it freezes. They filled multiple plastic containers of the same size with 50 milliliters (mL) of pure water. They placed each container in the freezer after covering it. Once the water became frozen, they measured the amount of ice present in each container.

After taking his container out of the freezer, a student left it open under a sunny window. What did the student most likely see in the container the next school day, assuming it was undisturbed?

Accepted Answer

49 mL of liquid water

Answer

55 mL of ice

Answer

58 mL of ice

Answer

None of the above

Question 3

In two nearby farms, the researchers measured the amount of soil lost in kilograms per hectare (kg/ha). Every field was divided into two parts of the same size, one with radish ground cover and the other without. The graph below displays the results.

Before the start of the study, the scientists examined the fields. Which of the scientists' observations had the biggest impact on the study's findings?

Accepted Answer

Field A is more sloped than Field B.

Answer

Field A has more rocks in it than Field B.

Answer

In Field A, grass used to grow, but not in Field B.

Answer

Between Field A and Field B, there is a tree.

Question 4

In two nearby farms, the researchers measured the amount of soil lost in kilograms per hectare (kg/ha). Every field was divided into two parts of the same size, one with radish ground cover and the other without. The graph below displays the results.

Which of the scientists' claims are best supported by the facts they gathered?

Accepted Answer

In comparison to the portions with radish ground cover, each field lost at least 110 kg/ha more soil in the sections lacking ground cover.

Answer

Wind had less of an impact on the areas of each field without any ground cover than it did on the areas with radish ground cover.

Answer

Due to its bigger surface area, the larger field lost five times as much soil as the smaller field.

Answer

Compared to other types of ground cover, radish ground cover reduced soil loss by around 50 kg/ha.

Question 5

In two nearby farms, the researchers measured the amount of soil lost in kilograms per hectare (kg/ha). Every field was divided into two parts of the same size, one with radish ground cover and the other without. The graph below displays the results.

Why did the researchers select two fields that were close to each other?

Accepted Answer

To make sure that the two fields experienced the same weather conditions.

Answer

To evaluate which kinds of wildlife consume radishes in each field.

Answer

As a result, soil lost in one area would blow into another.

Answer

For them to make their observations without having to move far.

Question 6

A flammable liquid called propane was used in an experiment by a researcher to study mass conservation. In several trials, the researcher burnt propane in the presence of oxygen. The mass of carbon dioxide and water vapor created during each trial was calculated by the researcher, who then graphed the results.

Which experimental finding most strongly suggests the presence of a chemical reaction?

Accepted Answer

It formed two new substances.

Answer

The propane changed shape.

Answer

The temperature changed.

Answer

A gas transformed from a liquid.

Question 7

A flammable liquid called propane was used in an experiment by a researcher to study mass conservation. In several trials, the researcher burnt propane in the presence of oxygen. The mass of carbon dioxide and water vapor created during each trial was calculated by the researcher, who then graphed the results.

According to the researcher, when propane and oxygen react, carbon dioxide is created at a higher rate than water vapor. Which graph's evidence most strongly supports the researcher's claim?

Accepted Answer

It was consistent that the mass of carbon dioxide was produced than water vapor.

Answer

In every trial, the mass of water vapor and carbon dioxide increased.

Answer

The mass of oxygen and propane needed in each reaction determined how much carbon dioxide and water vapor were created.

Answer

Throughout the testing, the mass of water vapor created increased by more than 400 g.

Question 8

During photosynthesis, what happens to the glucose produced?

Accepted Answer

The plant uses it to perform life-sustaining processes.

Answer

It is kept in reserve in the chloroplasts of plants to aid in preserving their green color.

Answer

Small openings in a plant's leaves allow it to be released into the atmosphere.

Answer

In order to finish another cycle of photosynthesis, it is mixed with water.

Question 9

Which of the following is required for a plant to produce glucose?

Accepted Answer

Carbon dioxide

Answer

Oxygen

Answer

Soil

Answer

Hydrogen

Question 10

In two identical trays, a student planted multiple cuttings of the same size from one parent plant. The student put the cuttings in nutrient-rich soil in Tray One. The student placed the cuttings in nutrient-poor soil in Tray Two. Trays One and Two were positioned beneath the same light source. For two weeks, the student watered the cuttings in each tray with the same quantity of water each day. After two weeks, the plants in Trays One and Two are shown in the pictures below.

What was the purpose of the student using cuttings from one parent plant?

Accepted Answer

To rule out the effect of genetic differences.

Answer

To evaluate their growth in relation to other species

Answer

To cut down on the experiment's number of steps.

Answer

To prevent the parent plant from growing.