Earth Science SOL Unit 1 Test - Scientific Investigation

Which of the following is NOT a reliable source for scientific research?

• Scientific Journals

• Encyclopedias

• Word of mouth

• Previous Findings

Answer explanation

Word of mouth is not a reliable source for scientific research as it lacks verification and can be based on personal opinions rather than evidence. In contrast, scientific journals, encyclopedias, and previous findings are credible sources.

What is the significance of collaboration in scientific research?

• It limits the scope of research.

• It enhances the reliability of findings.

• It makes research more expensive.

• It complicates the research process.

Answer explanation

Collaboration in scientific research enhances the reliability of findings by bringing together diverse expertise, perspectives, and resources, which can lead to more robust and validated results.

Match the following descriptions with the correct type of variable.

• Quantitative Data

• The effect of manipulating the independent variable

• Constant

• The data collected using numbers

• Independent Variable

• The variable that is intentionally manipulated

• Qualitative Data

• The same is used throughout the experiment

• Dependent Variable

• The data collected using the five senses

Answer explanation

Refer to your notes.

Tags

NGSS.MS-PS2-2

What unit is used to measure air temperature in meteorology?

• Millimeters

• Celsius

• Millibars

• Miles per hour

Answer explanation

In meteorology, air temperature is measured in degrees Celsius. This unit is widely used for its simplicity and relevance in weather reporting, unlike millimeters (for precipitation), millibars (for pressure), or miles per hour (for wind speed).

The mass of an object is 5 grams and a volume of 2 cm³. Calculate the density of the object.

• 10 g/cm³

• 2.5 g/cm³

• 0.4 g/cm³

• 7 g/cm³

Answer explanation

Density is calculated using the formula: density = mass/volume. Here, density = 5 g / 2 cm³ = 2.5 g/cm³. Thus, the correct answer is 2.5 g/cm³.

What does an anemometer measure?

• Wind Speed

• Air Temperature

• Atmospheric Pressure

Answer explanation

An anemometer is a device specifically designed to measure wind speed. It does not measure air temperature, water vapor content, or atmospheric pressure, making 'wind speed' the correct answer.

What is the function of a hygrometer?

• To measure air temperature

• To measure water vapor content

• To measure wind speed

• To measure atmospheric pressure

Answer explanation

A hygrometer is specifically designed to measure the water vapor content in the air, which is essential for understanding humidity levels. The other options pertain to different meteorological instruments.

What is the function of a rain gauge in meteorology?

• To measure air temperature

• To measure precipitation

• To measure wind speed

• To measure atmospheric pressure

Answer explanation

A rain gauge is specifically designed to measure precipitation, which includes rain, snow, and other forms of moisture. This makes 'To measure precipitation' the correct choice among the options provided.

What is the primary use of satellite imagery in remote sensing?

• To measure soil properties

• To provide a wide-angle view of the Earth's surface

• To detect earthquake waves

• To determine the age of rocks

Answer explanation

The primary use of satellite imagery in remote sensing is to provide a wide-angle view of the Earth's surface, allowing for the observation and analysis of large areas, which is essential for various applications in environmental monitoring and land use planning.

Which TWO of the statements are correct?

• Weight changes with the object's location.

• Mass changes when the amount of matter changes.

• Weight changes when the amount of matter changes.

• Mass changes with the object's location.

Answer explanation

An object's mass changes only when the amount of matter it contains changes. Location, temperature, and speed do not affect mass; they may affect weight or other properties, but not the mass itself.