Friction #2
2 law of motcion
Answer:
Observation: Fertiliser produced tall pea plants
Hypothesis: Pea plants grown in the soil with the addition of fertiliser will grow taller than pea plants without fertiliser
Independent variable: Fertiliser
Dependent variable: Growth of plant
Control group: 5 pea plants in the pot without fertiliser
Experimental group: 5 pea plants in the pot with fertiliser added
Qualitative or Quantative data: Qualitative
Explanation:
Observation is using your senses to describe what you see.
A hypothesis is a prediction.
The independent variable is what you change in an experiment.
The dependent variable is what changes as a result of the independent variable. The dependent variable is what is measured in an experiment.
The experimental group is the group of subjects in an experiment which are exposed to the independent variable.
The control group is the group of subjects in an experiment which are not exposed to the independent variable.
Qualitative data is data that can be described but not measured. Quantitative data is data that can be measured.
con·front
/kənˈfrənt/
Learn to pronounce
verb
meet (someone) face to face with hostile or argumentative intent.
Answer: mutations that natural selection can work on. 4.) How do scientists calibrate a molecular clock? ... they compare the number of positive mutations that have occurred in a particular species with the number of negative mutations that have occurred
Explanation:
Light reactions<span> need </span>light<span> to produce organic energy molecules (ATP and NADPH). They are initiated by colored pigments, mainly green colored chlorophylls. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
