Hypothesis Worksheet-Key
HorkyName: ______
HYPOTHESIS WORKSHEET-KEY
(3pts each) Write a hypothesis for each of the following research problems. Identify the dependent and independent variable for each.
- What effect does high temperature have on radish germination?
If high temperature is related to radish germination, then an increase in temperature may increase radish germination.
Independent variable: temperature
Dependent variable: radish germination
- What effect does studying with music have on student test scores?
If music is related to test scores, then studying with music may increase test scores.
Independent variable: Music
Dependent variable: Student test scores
- What effect does food color have on the amount of food fish eat?
If food color and amount of food consumed by fish are related, then brighter color of food may increase the amount of food that the fish eat.
Independent variable: Food color
Dependent variable: Amount of fish food
- What effect does light have on plant growth?
If light is related to plant growth, then an increase in light may increase the growth of the plant.
Independent variable: Light
Dependent variable: Plant growth
- What effect does smiling have on teacher giving no homework?
If smiling is related to a teacher not giving homework, then an increase in smiling may increase the chance that a teacher will not give homework.
Independent variable: Amount of smiling
Dependent variable: Amount of homework
(3pts each) Write a problem for each of the following hypotheses. Identify the dependent and independent variable for each.
- If plants are watered, then they may increase in height.
What effect does water have on plant growth?
Independent variable: amount of water
Dependent variable: plant height
- If chocolate is given to teachers, then amount of homework may decrease.
What effect does chocolate have on the homework that teachers give?
Independent variable: chocolate
Dependent variable: amount of homework
- If trees have leaves, then bird nests may increase.
What effect do leaves on trees have on bird nests?
Independent variable: amount of leaves
Dependent variable: number of bird nests
- If acid rain is in water, then fish population may increase.
What effect will acid rain have on the fish population?
Independent variable: amount of acid rain
Dependent variable: size of the fish population
- If calcium is given, then bone strength may increase.
What effect will calcium have on bone strength?
Independent variable: amount of calcium
Dependent variable: bone strength