Hypothesis: I observed most plants are green and they need water and sunlight to grow, so my hypothesis is that indoor and tropical plants act the same way when exposed to cold and hot temperatures .

Crontrolled varibles: a factor  that held constant in a research .one of  the varibles is  temperature

Constant  varibles: A value you keep while doing the experiment and one of the varibles is time

Manipulated varibles: A factor that changes through out of the experiment and one of the varibles are  

The procedure for this science project is:

Step 1: Measure the initial temperature of the plant using an infrared thermometer 

Step 2: Start the timer for five minutes

Step 3: Hold the ice pack until the timer is finished

Step 4: Measure the temperature again  after the timer is done

Step 5: Wait until the plant comes back to its initial temperature 

Step 6: Measure the time taken for the plant to come back to it's self

Step 7:  repeat te procedure two more times 

Step 8: repeat the procedure from step three to apply heat 

We used 5000 lumins bulb to imitate sunlight tests

We used -18 degree celius ice wrapped in a paper towel for the tests

For cold 

For cold temperature impacts, monstera is showing a faster recovery while rubber plant is showing the slowest recover time. 

So Monstera can withstand large variations of climate change, so it could be moved outside and inside easily.

In my opinion, excluding monstera, the other three plants take more time to come back to normal ifpt in cold temperatures

For heat 

For heat temperature impacts, monstera is showing the slowest recovery time tha the other three plants.

This happens because monstera is a tropical plant and acts this way when stressed by heat.

I this study, I experimented with heat and cold treatments to indoor plants: Pothos & ZZ and tropical plants: Monstera Deliciosa & Ficus elsastica to understand fundamental characteristcs that differentiate these plants. While indoor plants adapt easily to lower sun and need constant temperatures, tropical plants need intense sunlight anc can withstand temperature changes well.

Thus, to make tropical plants thrive indoors, we may have to provide them with similar conditions like outdoors. For example provide additional sunlight like setup using lights and continous misting to provide temperature varioations during deep winters when indoor temperature make the rooms dry.

We can use this understanding to allow others investigating on plant growth especially focusing on indoor and outdoor plants in Canada.

Our approach can be used to study specific types of plants such as Philodendron, cacti and succulents.

We identified the following sources of error for this study

1) We used 5mins for the duration of the hot and cold treatments on all the plants. Changing the duration will have implications on the results,  which is part of our future work

2) We also used just four types of plants in our study: two indoor (pothos and ZZ), two tropical (Monstera and Ficus elastica [rubber plant]). So, we can not  generalize the results to all the plant families, however, we conducted the tests three times and took the average readings to arrive at conclusion. Expanding this work to other plants of indoor and tropical is our future work.

3) We relied on the infrared thermometer to measure the temperature of the leaves before and after tests. The internal measurement issues could alter the reading values, which is an external threat to our results validation, outside of our control.

4) We conducted these experiments during deep winters (in January and February in Calgary), so we understand that the results might have had some impact due to the continuous lower temperatures outside our home. However, this is beyond our control.

Add the links of various scientific websites and content you read to gather the details for this experiment

 Site1: https://advancedchemtech.com/what-is-a-constant-variable-in  science/#:~:text=Chances%20are%20you've%20heard,the%20same%20during%20an%20experiment.

I would like to thank my parents for all the support as they brought me essential materials to conduct these experiments. I want to thank my mom for lending her plants for this experiment, without which I would not have learned so much about it