Hypothesis Review

A hypothesis is always written as a ______.

• statement

• question

A hypothesis must be _____.

• testable

• a result

• a conclusion

• a problem

When writing you hypothesis, what information follows IF?

• dependent variable

• how you know it will happen

• independent variable

• anything

When writing a hypothesis, what information do you fill in after THEN?

• dependent variable

• independent variable

• how you know it will happen

• anything good

A students was doing an experiment using the scientific method. Every three days the student plans to count the green leaves. Which would be a good hypothesis for this experiment?

• If plants are placed in direct sunlight, then they will grow more green leaves.

• If plants are places in bright light, then they will grow more green leaves than in dim light.

• If plants are place in clay pots, then they will grow more green leaves than plastic pots.

• If plants are in warmer temperatures, then they will grow more green leaves.

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

• the male alligators

• the gender of the alligator

• the temperature

• the incubator

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is

• the temperature

• the size of the baby alligators

• the incubator

• the gender of the baby alligators

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

If I feed my dog peanut butter then her fur will turn brown in color.

The independent variable is ​ (a)   and the dependent variable is ​ (b)   .

Is this hypothesis testable ?​ (c)  

• peanut butter
• fur color
• yes
• no

If I add fertilizer to my garden, then my plants will grow faster.

The independent variable is ​ (a)  

The dependent variable is ​ (b)  

• fertilizer
• plant growth
• garden
• faster