1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
s344n2d4d5 [400]
3 years ago
14

Two scientists wanted to determine if temperature affects the growth of plants answers

Biology
1 answer:
bija089 [108]3 years ago
5 0
The goal of an experimental investigation is to determine how changes in an independent variable affects another variable, which is called the dependent variable.

Remember: When designing an Experimental Investigation it is important that you only have one independent variable and one dependent variable. All other variables must be controlled, meaning they must stay the same.

FYI: Controlled variables are not the same as a Control for your Investigation. The following will explain this.

Start Experiment Design:

I want you to understand some of the thought processes for designing an experiment that meets Science Fair Project requirements.

1. You need to have a purpose for your investigation. At this point you may not know exactly what you want to do but let’s assume you want to work with plants. I’d search the web and find different project ideas about plants.
You will find ideas on this page?



Let’s assume you decide to investigate how light effects plant growth. At this point you need to write a basic purpose. I point out that this is might only be a BASIC Purpose, meaning you may need to improve it.

Basic Purpose of Investigation: How light effects plant growth.

I’ll come back to the purpose, but next you need to write your science fair question.

2. The question for an experimental investigation must identify both the independent variable and the dependent variable. Your basic purpose identifies light as the independent variable and plant growth as the dependent variable.

Don’t Forget: The independent variable and the dependent variable for an experimental investigation must be measurable.

Measuring the Independent Variable

How does one measure light?
Light is very general. You need to be more specific about the independent variable. You will get the point after reading the following questions.

Do you want to measure how different types of light sources, such as sunlight, artificial light, or colored light effects plant growth? This is a good idea for a science project.
Do you want to measure how changes in the amount of one type of light effects plants growth?
This is another good idea for a science project.See ????? for more ideas for how light affects plant growth.
You may have other ideas about the light you want to use, but for this article, I will give examples for measuring the amount of one type of light.

The Independent Variable is the amount of light the plant received.

Ideas for how to change the amount of light.

1. Use sunlight which changes during the day as well as from one day to the next.
You can also use direct and indirect sunlight.

2. If you use artificial light you can decide when and for how long the plant will receive this light. You also have the option to control the wattage of light used–its color–type (fluorescent, UV, incandescent). Just use the same type of light for each test plant–see controlled var

iables below.
You might be interested in
Which of the following does not describe Dinoflagellates?
dybincka [34]
The answer is B. Multi cellular does not describe Dinoflagellates<span />
5 0
3 years ago
What do you need to use in order to work as an environmental scientist?
Gala2k [10]

Knowledge of earth system in order to protect, understand and develop research methods.

8 0
3 years ago
Read 2 more answers
hypothesize a mechanism to explain how tissues respond to insulin in different ways, even tisses that have the same amount of re
soldi70 [24.7K]
<span>The major effects of insulin on muscle and adipose tissue are: (1) Carbohydrate metabolism: (a) it increases the rate of glucose transport across the cell membrane, (b) it increases the rate of glycolysis by increasing hexokinase and 6-phosphofructokinase activity, (c) it stimulates the rate of glycogen synthesis and decreases the rate of glycogen breakdown. (2) Lipid metabolism: (a) it decreases the rate of lipolysis in adipose tissue and hence lowers the plasma fatty acid level, (b) it stimulates fatty acid and triacylglycerol synthesis in tissues, (c) it increases the uptake of triglycerides from the blood into adipose tissue and muscle, (d) it decreases the rate of fatty acid oxidation in muscle and liver. (3) Protein metabolism: (a) it increases the rate of transport of some amino acids into tissues, (b) it increases the rate of protein synthesis in muscle, adipose tissue, liver, and other tissues, (c) it decreases the rate of protein degradation in muscle (and perhaps other tissues). These insulin effects serve to encourage the synthesis of carbohydrate, fat and protein, therefore, insulin can be considered to be an anabolic hormone.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

</span>
4 0
3 years ago
Read 2 more answers
Define disruptive selection
ivolga24 [154]

Disruptive selection describes changes in population genetics in which extreme values for a trait are favored over intermediate values.

8 0
3 years ago
Read 2 more answers
Will give BRAINLIEST to the correct answer!
lyudmila [28]
Movement : kinesis
Behavior: It is sometimes called a roly-poly due to its ability to roll into ball when disturbed
3 0
3 years ago
Other questions:
  • One medium fruit serving is about the size of a(n):
    13·1 answer
  • When the juxtaglomerular cells in the kidney are, they produce and secrete the enzyme renin into the blood. what subsequent chan
    7·1 answer
  • Plz help me!!!What does it mean for an allele to be dominant?
    7·1 answer
  • Which of the following is directly responsible for the sequence of amino acids in a protein? Group of answer choices the sequenc
    13·1 answer
  • How would a loss of chlorophyll most likely affect cellular respiration in plant
    10·1 answer
  • This energy source also provides us with products such as ink, eyeglasses, and tires.
    14·1 answer
  • In rabbits, brown fur color (F) is dominant to white fur color (f). If two rabbits with brown fur produce a baby with white fur,
    10·1 answer
  • Which renewable energy source would be MOST appropriate for lands near a flowing stream or river?
    8·1 answer
  • Explain how parents that do not have a trait can have a child that has the trait
    13·1 answer
  • Tell me an operational definition for each underlined idea. You can do one, but the more you do the more points you get. Thank y
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!