School of Life Sciences | Ask A Biologist

dropdown arrow downdropdown arrow upshow/hide menu

Ask A Biologist graphic

Do It Yourself Manduca Growth Experiment

show/hide words to know

  • Data: the results (values) obtained in a scientific experiment, or investigation. Note "data" is the plural form of the word "datum." Example- the data are shown in this graph... more
  • Graph: also known as chart and plot, is a visual tool drawn or made using a computer to show how two or more variables relate to each other. Examples are pie graphs, histograms and scatter graphs... more
  • Scientific Method: a set of steps and techniques scientists use to investigate and understand the physical and living world... more
  • Stemplot: also known as a stem-and-leaf-display, is a graphical tool to show data ... more
  • Variable: factor that may affect a particular experimental group. In an experiment a variable is something that can be changed such as temperature or length of time.

Do It Yourself Manduca Experiment

Want to do your own experiment? Then this is the place to be. We have complete instructions on building and running your own experiment. There are also results at the end of this page from our own DIY experiment. You can use our data to compare with your own experiment results. Complete instuctions and printable resouce packet are listed below.


DIY steps using the scientific method

Question: How will temperature affect the growth of Manduca over time?

Generate your own hypothesis and predictions about what will happen. 

Collect your data

  1. Use your Do it Yourself student handout to guide you through growing your own Manduca from egg, to caterpillar, to pupae, and all the way to an adult moth.
  2. You can click on the animation link for either temperature window below to get a sneak peek at what you might see.

Analyze your data

  1. Plot graphs of your data (length vs. days and mass vs. days) for both temperatures using this link or your own Excel sheet to determine if there are real differences between the different temperature groups.
  2. Use the analysis questions from your full virtual lab student handout along with the information about temperature, Manduca, and animal growth on this website to help you interpret your data.
  3. Optional: Compare the data from your Manduca’s to the Manduca that we reared using the same methods that you did. See the Do It Yourself student handout for instructions on how to do this.

* Full featured virtual experiment supported by all browsers except Internet Explorer.

Manduca Grown at 23°C

  • Manduca 01 (Home/Classroom 23°C), Day 1
    Animation
    Mass in grams (g): 0.001118
    manduca image

Manduca Grown at 30°C

  • Manduca 01 (Home/Classroom 30°C), Day 1
    Animation
    Mass in grams (g): 0.001137
    manduca image
Manduca caterpillar cardboard box

Share to Google Classroom

Be part of Ask A Biologist

by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.

dropdown arrow downdropdown arrow up  Learn More

Manduca caterpillar cardboard box

Share to Google Classroom

Be part of Ask A Biologist

by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.