Question

1. \giving plants as much light as possible does not always produce the tallest plants\. this statement is best described as a/an

a. observation.
b. hypothesis.
c. theory.
d. conclusion.

1. you will conduct a test to find out which type of hair spray has the longest - lasting hold. you take pictures of your hair every 4 hours for 24 hours and observe the changes, such as movement of hair from its original place. later, you compare the pictures and note any changes, what type of data are you collecting?

a. quantitative
b. qualitative

1. you conduct a test to find out which running shoes have the longest - lasting tread. you test 4 different shoe types over the course of a year. you run a mile 3 times a week for 3 months wearing shoe type a. you do the same for the next 3 months with shoe type b, and again for 3 months with shoe type c, and finally, withtype d. at the end of each week, you measure the tread depth on the shoes with a ruler and write down all the measurements in your notebook. what type of data are you collecting?

a. quantitative
b. qualitative

1. which of the following shows the correct order of events for the scientific method?

a. hypothesis>observations>experiment>collect & analyze data>repeat experiment>write conclusions in a report
b. observations>experiment>hypothesis>collect & analyze data>write conclusions in a report>repeat experiment
c. collect and analyze data>hypothesis>experiment>observations>write conclusions in a report>repeat experiment
d. observations>hypothesis>experiment>collect & analyze data>write conclusions in a report>repeat experiment

1. a hypothesis states, \the higher the temperature in the oven, the faster a cake will bake.\

identify the independent variable.
a. time it takes for the cake to bake
b. temperature
c. recipe
d. cake

Explanation:

• Question 20: An observation is a statement based on what is seen or measured. A hypothesis is a proposed explanation. A theory is a well - established explanation. A conclusion is a final decision. The statement “Giving plants as much light as possible does not always produce the tallest plants” is a conclusion as it is a final statement based on some form of testing or observation.
• Question 21: Qualitative data is descriptive, about characteristics. Quantitative data is numerical. Observing changes in hair (movement from original place) is descriptive, so it is qualitative data.
• Question 22: Measuring tread depth with a ruler gives numerical values. Quantitative data is numerical, so this is quantitative data.
• Question 23: The scientific method starts with observations, then a hypothesis is formed, followed by an experiment, data collection and analysis, writing conclusions, and then repeating the experiment.
• Question 24: The independent variable is the variable that is changed or controlled. In the hypothesis “The higher the temperature in the oven, the faster a cake will bake”, the temperature is the variable that is changed (independent variable), and the time it takes for the cake to bake is the dependent variable.

Answer:

1. d. conclusion
2. b. qualitative
3. a. quantitative
4. d. Observations>Hypothesis>Experiment>Collect & analyze data>Write conclusions in a report>Repeat experiment
5. b. temperature