Create Your Own Experiment

In class we have been practicing using the scientific method. You will put this knowledge to the test. You need to come up with your own idea for a simple (and inexpensive) experiment. Make sure that this is something that you can do safely at home. Then you need to complete the lab and write up all the steps of a formal lab report. You may complete this with a partner. 

Before you begin the experiment...

Turn in a sheet of paper with your experiment idea and it must be signed by a parent or guardian.  This activity can be worth up to 7 Extra Credit test points!!!

Good Luck!

Lab Write Up Guidelines
click here for a printable, pdf version

Title

The title can be as catchy or serious as you want, as long as it tells what the lab will be about.

Question or Problem Statement

- This is sometimes given to you.This question explains the purpose of the lab.
The first word is “To”
The second word is an action verb such as observe, test, record, measure, which is followed by “the affect of”

Variables

Independent Variable (IV) - Is what the experimenter is changing on purpose.
- Starts with “The independent variable, which will be changed and tested is…”
Dependent Variable (DV) - Is something that can be measured in numbers (unless teacher tells you otherwise).
Starts with “The dependent variable, which will be measured is…”

Control Group

- This is what everything else is being compared to.
- Starts with “The control is…”

Hypothesis

- The hypothesis is a prediction of what you think will happen based on what you already know.
- Starts with “If the (DV) is related to the (IV), then (prediction) .”

Materials

- Make a bulleted list of all the materials. Include the quantities.

Procedure

Make a numbered list of what is to be done in the experiment.
The steps should begin with action verbs (pour, measure, write, etc).
Make sure to include repeat trials.
Draw a diagram of the set up of the experiment.

Data Table/Observations

- Create a data table to display the results of the trials
- Include appropriate headings, units, and a title.
- The title should follow the format “The effect of (IV) on the (DV)”

Graph

- Choose an appropriate graph based on the type of data gathered- Include a title that matches the data table, labels for the x and y-axis, and all the units.

Results (paragraph form)

- Must have an introduction and a conclusion.
- Explain what happened.
- Summarize the data table (be specific).

Sources of Error

- Describe 3-5 human errors, environmental factors, or problems with materials that may have affected the results. Write as a sentence.

Conclusion (paragraph form)

1st sentence – state the purpose of the lab
2nd sentence – restate the hypothesis-
3rd sentence – state whether your hypothesis was correct or not
4th sentence – summarize the results of the data table -
5th sentence – explain how this lab helps you understand the world around you 

 


NASA Daily Image

NASA Image Of The Day
Hubble Sees Turquoise-Tinted Plumes in Large Magellanic Cloud
The brightly glowing plumes seen in this image are reminiscent of an underwater scene, with turquoise-tinted currents and nebulous strands reaching out into the surroundings. However, this is no ocean. This image actually shows part of the Large Magellanic Cloud (LMC), a small nearby galaxy that orbits our galaxy, the Milky Way, and appears as a blurred blob in our skies. The NASA/European Space Agency (ESA) Hubble Space Telescope has peeked many times into this galaxy, releasing stunning images of the whirling clouds of gas and sparkling stars (opo9944a, heic1301, potw1408a). This image shows part of the Tarantula Nebula's outskirts. This famously beautiful nebula, located within the LMC, is a frequent target for Hubble (heic1206, heic1402). In most images of the LMC the color is completely different to that seen here. This is because, in this new image, a different set of filters was used. The customary R filter, which selects the red light, was replaced by a filter letting through the near-infrared light. In traditional images, the hydrogen gas appears pink because it shines most brightly in the red. Here however, other less prominent emission lines dominate in the blue and green filters. This data is part of the Archival Pure Parallel Project (APPP), a project that gathered together and processed over 1,000 images taken using Hubble?s Wide Field Planetary Camera 2, obtained in parallel with other Hubble instruments. Much of the data in the project could be used to study a wide range of astronomical topics, including gravitational lensing and cosmic shear, exploring distant star-forming galaxies, supplementing observations in other wavelength ranges with optical data, and examining star populations from stellar heavyweights all the way down to solar-mass stars. Image Credit:ESA/Hubble & NASA: acknowledgement: Josh Barrington Text: European Space Agency...
21 Oct 2014