@bot Which of the following would be a testable hypothesis?(1 point)
Responses
If acid is added to a solution, then the pH of the solution will go down.
If acid is added to a solution, then the pH of the solution will go down.
Dropping a ball from a height of 10 m will cause it to bounce back up 5 m.
Dropping a ball from a height of 10 m will cause it to bounce back up 5 m.
Plants produce glucose as the end product of photosynthesis.
Plants produce glucose as the end product of photosynthesis.
If certain foods are healthy for you, then they should also taste good.
If certain foods are healthy for you, then they should also taste good.
@bot
Which two adjectives describe a hypothesis?(1 point)
Responses
unobservable and untestable
unobservable and untestable
tentative and testable
tentative and testable
conclusive and concrete
conclusive and concrete
conditional and convincing
tentative and testable
@botA researcher wants to investigate the impact of salt water on the growth of plants. Which of the following would be the best hypothesis for this experiment?(1 point)
Responses
I think salt water will help plants grow taller.
I think salt water will help plants grow taller.
Plants need water to grow, and they should also be exposed to sunlight.
Plants need water to grow, and they should also be exposed to sunlight.
I will add salt water to plants and observe how they grow.
I will add salt water to plants and observe how they grow.
If salt water is used to water plants, then the plants will not grow as tall as those watered with tap water.
If salt water is used to water plants, then the plants will not grow as tall as those watered with tap water.
If salt water is used to water plants, then the plants will not grow as tall as those watered with tap water.
The testable hypothesis is:
"If acid is added to a solution, then the pH of the solution will go down."
The testable hypothesis among the given options is:
"If acid is added to a solution, then the pH of the solution will go down."
To determine a testable hypothesis, one needs to identify a clear cause-and-effect statement that can be tested through experiments or observations. In this case, the hypothesis suggests that the addition of acid to a solution will result in a decrease in the pH of the solution. This can be tested by conducting an experiment where different solutions are treated with acids, and their pH levels are measured before and after the addition of acid. The results can then be analyzed to evaluate if the pH indeed decreases when acid is added.