Nature of Science Pre-assessment

When collecting data, qualitative and quantitative information both help scientists further our understanding of a process. Which best exemplifies qualitative data collection?

• Identifying and comparing characteristics of an apple tree's response to a fertilizer such as the color, taste and shine of the apples.

• Recording how many how many apples different trees on a farm produce after regular doses of fertilizer in one season.

• Measuring newly planted apple tree trunk diameters after 3 years to compare trees that grow in two locations of a farm.

• Recording apple sales for each month apple picking is open to compare from one year to the next.

Tags

NGSS.MS-LS2-1

Which of the following hypothesis are in scientific format?

• IF people get sun exposure daily THEN they will be happier BECAUSE UV rays help your body create vitamin D

• People who get sun exposure daily are happier more frequently than people who do not because sunshine promotes feelings of well being.

• People who get sun exposure daily will result in them feeling more alert because UV rays promote feeling awake

• All of the above are in acceptable scientific formats

In a controlled experiment, how many factors should be changed at once under controlled conditions?

• 1

• 2

• 3

• any number of factors can be changed to get the best results.

Tags

NGSS.MS-PS1-2

The independent variable is best described as

• the one thing a scientist is testing in an experiment

• the group of an experiment that does not receive treatment

• the factors in an experiment that need to be kept the same between groups

• the measured outcome of an experiment

The independent variable is the

• one you measure.
• one you change.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS2-2

The variable that is measured in an experiment

• Dependent
• Independent
• Control
• Constant

Tags

NGSS.MS-PS3-4

A scientist is performing a controlled experiment where they are seeing if the color of paint in a room can influence a person's mood. The type of data being collected from this is experiment can be described as

• quantitative date

• qualitative data

If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?

• increase the amount of iron in your blood
• spinach you eat

Observe the recorded data from an experiment on the pH (acidity) of soil effecting plant growth. Based on the results, which conclusion is most accurate?

• The perfect pH for this type of plant is 6.0

• A pH of 6.6-6.8 is ideal for growing this type of plant under these conditions.

• A pH higher than 7 will be ideal for this type of plant

Tags

NGSS.MS-LS1-5

The step by step directions of the experiment are found in the:

• hypothesis
• conclusion
• procedure
• data table