GACE Middle Grades Science

GACE Middle Grades Science (014)

All candidates desiring to teach science to grade levels 4-8 in the state of Georgia must pass the GACE Middle Grades Science Assessment. Mometrix, the world’s #1 test preparation company, has developed the GACE Middle Grades Science practice test to assist you in passing this exam and beginning your career as a middle grades science teacher.

The GACE Middle Grades Science assessment is a computerized test consisting of 65 selected-response questions to be completed in 2.5 hours. The exam consists of four content subareas: Scientific Inquiry, Processes, Technology, and Society (20%), Physical Science (30%), Life Science (30%), Earth and Space Science (20%).

Subarea 1, Scientific Inquiry, Processes, Technology, and Society evaluates your understanding of scientific inquiry and design methods, history of scientific knowledge, nature of scientific knowledge, collection and analysis of scientific data, use of laboratory and field equipment, the impact that science and technology have on society and the environment, issues related to energy production, natural resource management, and the application of technology and science to daily life.

Subarea 2, Physical Science, assesses your knowledge of basic concepts, organization, and relationships involving energy and matter. This subarea covers chemistry topics such as the periodic table, simple compounds, chemical reactions, acid-base chemistry, solutions and solubility. Also included are physics questions containing topics such as basic concepts in electricity and magnetism, mechanics, and wave properties.

The third content subarea, Life Science, ensures your understanding of basic cell structure and function, biochemistry of life, basic genetics, theory of evolution, major structures and functions of plants, basic physiology and anatomy of animals and humans, population dynamics, community ecology and ecosystems.

The final content subarea, Earth and Space Science, covers geology, astronomy, the hydrosphere and the atmosphere. The geology questions include types, characteristics and formation processes of rocks and minerals, erosion, weathering, Earth’s structure, plate tectonics, and historical geology. Astronomy questions include the water cycle, the Earth’s various bodies of water, the Earth’s atmosphere, basic weather concepts, factors that affect seasons and the climate, the solar system, Earth-Moon-Sun interactions, and major features of the universe.

The GACE Middle Grades practice test developed by Mometrix covers the same content as the actual test and will prepare you for success so that you can begin teaching in your preferred field of study. Your path to success begins here!

GACE Middle Grades Science Practice Questions

1. Which of the following compounds is not allowed in a school laboratory because it is a potential carcinogen?

A: Lead
B: Benzene
C: Aspartame
D: Methanol

2. Which of the following quantities is largest in the metric system of measurement?

A: 10 decigrams
B: 100 milligrams
C: 100 grams
D: 1 decagram

3. In an experiment on respiration, carbon dioxide production is measured over time. Placing the data in a chart is

A: A visual representation of the data
B: A conclusion based on the data
C: The raw data
D: A comparative analysis of the data

4. In order to be included in the formation of a scientific conclusion, evidence must be

A: Quantitative
B: Reproducible
C: Obvious
D: All of the above

5. In a study investigating the causes of stomach ulcers, researchers observed that coffee drinkers had a higher incidence of stomach ulcers than those who didn’t drink coffee. This is an example of

A: A controlled experiment
B: A cause and effect relationship
C: Correlation between two variables
D: Systematic error in sampling

6. Which of the following is an example of a renewable resource?

A: Trees
B: Ore minerals
C: Fossil fuels
D: Cash crops

7. Which of the following is NOT a significant factor in the dramatic increase of the human population over the past few hundred years?

A: Increased availability of habitable land
B: Scientific advances in agriculture
C: Improved sanitation
D: An understanding of the causes of communicable diseases

8. Which of the following is a constant?

A: The freezing point of water
B: The temperature at which iron ore will melt
C: The human population size
D: The time the sun rises each day

9. Which of the following is an example of a chemical reaction?

A: Heating ethanol so that it evaporates
B: Igniting ethanol so that it burns
C: Dissolving salt in water
D: Making ice cubes in a freezer

10. Of the following, which is the most basic unit of matter?

A: A helium atom
B: A sodium ion
C: A proton
D: An oxygen molecule

Answer Key

1. B. Benzene, an organic compound, is classified as a carcinogen by the U.S. Department of Health and Human Services. The chemical has been linked to kidney cancer, leukemia, and other health problems. For that reason, benzene is not allowed in school laboratories. Lead a. can harm individuals, particularly children, if ingested, but is not considered a carcinogen. Aspartame c. is an artificial sweetener found in many foods and beverages. Methanol d., or methyl alcohol, can be fatal if ingested, but is not considered a potential carcinogen.

2. C. 100 grams represents the largest quantity. To solve a problem like this, it is often helpful to convert all answer choices to one quantity. 10 decigrams a. is equal to 1 gram (10 decigrams * 0.1 grams/decigram = 1 gram). 100 milligrams b. is equal to 0.1 grams (100 milligrams * 0.001grams/milligram = 0.1 grams). 1 decagram d. is equal to 10 grams (1 decagram * 10 grams/decagram = 10 grams). All of these quantities are smaller than c., 100 grams.

3. A. Creating a chart from collected data is a way to present information visually. Bar graphs, pie charts, histograms, organizational charts, and flow charts are all considered visual representations of data. Simply charting data does not involve making any conclusions b. The raw data is what is being used to construct the chart. It doesn’t need to be charted to be raw data, making c. incorrect. Charting this data does not involve analyzing it or comparing it to anything else, making d. incorrect.

4. B. Evidence used to make a scientific conclusion must be reproducible, meaning the same results would occur time and again if an experiment was repeated. The boiling point of water, for instance, always remains the same, regardless of where, when, or how many times it is measured. Evidence used to make scientific conclusions can be quantitative or qualitative, making a. incorrect, and evidence doesn’t have to be obvious to be valid, making c. an incorrect choice. Since a. and c. are incorrect, d. is also incorrect.

5. C. When there is a correlation, it means that variables are related. A change is one is associated with a change in the other. In this case, the variables are stomach ulcers and coffee consumption (no coffee consumption is associated with fewer stomach ulcers, and vice versa). A controlled experiment would involve controlling the exact amount of coffee consumption a., and there is not enough data to conclude that coffee causes ulcers b. There is nothing to suggest biases in measurement (systematic error) making d. incorrect.

6. D. A renewable resource is one that can be replaced at a rate that is similar to or equal to its rate of consumption by humans. Cash crops can be grown in a reasonable amount of time, and fields can be replenished with bananas, corn, coffee, etc. to meet demand. Trees a. that are cut down take many years to grow back, and cannot really be considered a renewable resource. Ore minerals b. and fossil fuels c. would take thousands or millions of years to be replenished.

7. A. A shortage of habitable land was never a factor that stopped the human population from increasing. Even today, North America has only about 32 people per square mile, so land availability has never been a huge problem. Advances in agriculture b. allowed more food to be produced on the same amount of land. Better food availability was a factor in population growth, as was improved sanitation c. , which resulted in less sickness and disease. Understanding the causes of communicable diseases d. resulted in fewer deaths.
8. A. Pure water will always freeze at the same temperature: 0 degrees Celsius, or 32 degrees Fahrenheit. The temperature at which iron ore will melt b. varies depending on the types of impurities that are present in the substance. The human population size c. has been changing ever since humans first inhabited the earth. The time the sun rises, d. varies according to the time of year and the location of the observer.

9. B. Chemical reactions are non-reversible. In addition, the byproducts or substances that are created are not the same as the original substances. When ethanol is burned, it reacts with the surrounding oxygen to produce carbon dioxide and water, two totally different substances. Evaporation a. is a physical change since it can be reversed. Dissolving salt in water c. is also reversible, and nothing new is created. Freezing water d. is also an example of a physical change. Only the water’s state of matter has changed.

10. C. The most basic units of matter are protons, electrons, and neutrons. Protons are found in the nucleus, and have a positive charge. They are one of the three components of a helium atom a. When atoms have positive or negative charges, they are known as ions b. Molecules of oxygen, water, etc. d. are even more complex, consisting of one or more atoms held together by bonds.