Practice ACT Science Review V1.004

Question 1

What was the independent variable in the experiment presented in figure 1?

Accepted Answer

Type of food

Question 2

What is the dependent variable in experiment?

Accepted Answer

Melting and boiling point., Mass, volume, density., None, this is only the formation of hypotheses by students.

Question 3

What is the independent variable in experiment?

Accepted Answer

This does not meet the definition of an experiment., Sample identity.

Question 4

Given the data we can make the assumption that roaches are after...

Accepted Answer

Protein.

Question 5

What was the dependent variable in the experiment presented in figure 1?

Accepted Answer

Amount of food remaining.

Question 6

Which variables were not specified to be held constant?

Accepted Answer

Amount of carbohydrates, lipids, proteins and water.

Question 7

Consider; "The roach ate at 0-4, 4-16, 16-24, and 24-28 hrs." This is true for how many foods?

Accepted Answer

4

Question 8

According to figure 1, the mass of cheese remaining at 4 hr was close to which value?

Accepted Answer

185 mg

Question 9

Stay Tuned For Reading Passage.

Accepted Answer

Shape Shifting - Mystique, Flight - Superman, Super strength - Hulk, Mindreader - Professor X

Question 10

Suppose temp of A is raised to 250 C at 1 atm. At 250 C, would A be a solid or liquid?

Accepted Answer

Liquid, because the melting point of sample A is 126 C.

Question 11

Based on student 3, the same substance composes both of the samples in which pairs?

Accepted Answer

Samples G and H

Question 12

Suppose a company wants to bait traps to catch this species of roach, what is the best food?

Accepted Answer

peanuts

Question 13

See Table 1, when 200 mg of each food was placed in the box, water was more than 100 mg for?

Accepted Answer

Cat food and ham only.

Question 14

Why might researchers be only focused on eliminating female B. germanica roaches?

Accepted Answer

removing females eliminates the males in the next generation

Question 15

Of student 2, 3 and 4; which would agree that sample A and B are the same substance?

Accepted Answer

Students 2 and 3 only.

Question 16

A student predicted the roach eats less cat food than ham by the end. Does the data support?

Accepted Answer

Yes, at 28 hr, the mass of cat food was 55 mg greater.

Question 17

Two samples have same mass, volume, density, & only BP are same. Which student(s) would agree?

Accepted Answer

Students 2 only.

Question 18

"Any 2 samples having the same density are the same substance." Which students would agree?

Accepted Answer

None of the students.

Question 19

In table 1, consider the order for protein from lo to hi, as protein goes up, mass in fig 1...

Accepted Answer

decreases only.

Question 20

With this type of question ACT is trying to determine if can u use data to distinguish between?

Accepted Answer

Independent and dependent variables., Graph or Table data trends., Different variables.

Question 21

If temperature of sample D is 890 C; will the sample's density be lower or higher than at 20 C?

Accepted Answer

Lower, D will be a gas and gases are < dense than solids.

Question 22

Based on student 1, the same substance composes both of the samples in which pairs?

Accepted Answer

Samples C and D.

Question 23

Stay Tuned For Reading Passage.

Accepted Answer

Chic-fil-A, Church's, KFC, Cane's

Question 24

Researchers focused on female B. germanica roaches only, which means...

Accepted Answer

the data is flawed, results cannot take into account males

Question 25

With this type of question ACT is trying to determine if u can use data to distinguish between?

Accepted Answer

Independent and dependent variables., Graphing or Table data trends., Varying opinions (primary answer.), Different variables.

Question 26

Of carbohydrates, lipids, proteins, and water; which is least likely to play a role?

Accepted Answer

carbohydrates., water., lipids.

Question 27

The fact that different people can interpret data differently makes a good case for...

Accepted Answer

peer review by other professionals.

Practice ACT Science Review V1.004

Questions 27

Practice ACT Science Review V1.004

Questions 27