Science Review/Prep

Which question about the Allegheny River can best be answered through scientific inquiry? 

• How many species of fishes are present in this river? 
• Will this river be a fun place to visit?
• Will fishing be a popular sport in five years? 
• How much money should be spent to manage this river? 

Which statement explains a long-term health effect of vaccinating people for a disease like influenza or malaria? 

• The disease would be completely eliminated.
• The risk of contracting the disease would be reduced.
• Body cells would mutate to produce a new disease strain.
• Vaccinated individuals would become carriers of the disease.

Which of the following describes one way scientists use seismographs? 

• to view distant stars and planet
• to measure the masses of objects
• to help record atmospheric temperature changes
• to help determine the composition of Earth's interior

Which statement best describes a dominant gene? 

• It is the gene that produces mutations.
• It is the gene that produces desirable traits. 
• It is the gene that masks a recessive gene. 
• It is the gene that is masked by the recessive gene. 

Which statement describes how recycling aluminum cans positively affects the environment?

• Recycling uses energy.
• Recycling makes solid waste. 
• Recycling conserves mineral resources. 
• Recycling produces air pollution. 

Which energy source can be described as having the GREATEST impact on Earth's living environments?

• the Sun
• Geothermal
• Moving Water
• Moving Air 

Which statement describes two factors that have the GREATEST influence on tides? 

• the Earth revolves around the Sun once each year, and the gravity of the Earth causes the bulge.
• Earth revolves around the Sun once each day, and the gravity of the Sun causes the bulge.
• Earth rotates on it's axis once each day, and the gravity of the Moon causes the oceans to bulge.
• Earth rotates on it's axis once each year, and the gravity of the Moon causes the bulge. 

Which physical property causes clouds to form from water vapor in the air? 

• Sublimation
• Condensation
• Distillation
• Evaporation

Which of these would be different for an object if measured on the Earth and on the moon? 

• Weight
• Mass
• Density
• Volume

Which of the following could best be used to demonstrate energy being transformed from electricity to heat? 

• A magnifying glass
• A triple beam balance
• A gas oven
• A toaster