OpenSCiEd C1. L3 PRE LAB

The Investigation routine is conducted throughout the unit. We decided to answer the question: How does increased CO₂ cause global temperatures to rise?

How did the Investigation Routine help us make progress in answering our questions?

• We knew how to make sense of our data. The data should help to answer the question.

• It helped us get a clear idea of what we were investigating. We isolated two variables.

• It helped us to select an investigation so that we could gather new evidence.

• ALL of These

COMPLETE OUR HYPOTHESIS:

IF ​ __1__, THEN the temperature of the system will __2___.

• 1. 1. the amount of the CO₂ in the system decreases

  3. 2. increase

• 1. 1. the amount of the CO₂ in the system increases

  3. 2. increase

• 1. 1. the amount of the water in the system increases

  3. 2. increase

Answer explanation

Hypothesis: A brief statement that forms the basis of the entire research experiment.

Which of the following would be categorized as control variables in this experiment? Select all that apply.

• Water Bottle

• Heat Lamp

• Amount of CO₂

• Amount of time we run the experiment

• Amount of water.

What is the Independent variable that we test in our experiment?

• Amount of Heat

• Amount of CO₂ tablets

• Type of water bottle

Answer explanation

We decided to change the amount of CO2 in each bottle. That makes it the independent variable. (Remember: Independent, I Decide) The scientist decides what to change.

What is the dependent variable in our experiment?

• The number of bubbles

• The brand of thermometer

• The height of the light

• The temperature

Which mixture is the most concentrated with copper sulfate?

• A

• B

• C

• D

What kind of correlation do you expect to see? (meaning what kind of pattern are you predicting to see in the data)

• Direct (Directional)

• Indirect

• No Correlation

Answer explanation

Which of the following is NOT one of our "Science Ideas"?

• Energy can disappear if the conditions are right

• A dotted line represents the boundary of a system.

• energy transferred from the heat lamp through light, to the air in the bottle.

• Air particles in the bottle sped up, especially when there was CO2 in the bottle.

Answer explanation

ENERGY CANNOT BE DESTROYED. ONLY TRANSFERED

Which one of these cups is a closed system (no matter can get in or out)?

• 
• 
• 

What is greenhouse effect?

• A warm atmosphere around Earth is caused by trapped solar radiation

• absorbs and emits radiant energy from the sun

• increased carbon in the Earth's atmosphere

• Increasing Earth's temperature because there is a hole in the ozone.