Question

Maverick wants to find out whether or not Miracle Grow really makes plants grow faster. He takes two identical pots, puts ½ cup of dirt into each one, puts 3 pea plant seeds into each one, and tops each off with ½ cup more dirt. He waters the plants the same amount at the same time each day. The only difference is that one plant is watered with regular water, while the other is watered with water that has Miracle Grow in it.

Independent Variable:

Dependent Variable:

Controls(s):

Constants:

Hypothesis:

Answer 1

Hi, I'd like to help you out with this.

Do you already know what all of these terms mean?

Independent variable
Dependent variable
Control
Constant
and Hypothesis

Answer 2

yes i know what these terms mean.. InYourHead

Answer 3

So, as far as I know, Control and Constant are the same thing.

Let's start by looking for the Control/Constant.

See here, we have two pots. And we're looking for the things that are the SAME with BOTH pots.

***Question: What is the same about both pots?***

1. Putting 1/2 cup of soil into each pot.
2. Putting 3 plant seeds into each pot.
3. Putting 1/2 cup of soil on top of the plant seeds, in each pot.
4. Giving each plant the same amount of water, each day.
5. Watering the plants at the same time, each day.

Those five things are the SAME for both pots, see?
And there we have our Controls/Constants.

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Now, let's look for the Independent variable.

We're looking for the ONE thing that is DIFFERENT in each pot.

***Question: What is different about both pots?***

Let's look at the last sentence, in the problem:

"The only difference is that one plant is watered with regular water, while the other is watered with water that has Miracle Grow in it."

So, the difference the the TYPE OF WATER that is used to water each pot.
And there we have our Independent variable.

One type of water has Miracle Grow.
The other type of water is just regular water. No Miracle Grow.

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Now, let's try to find the Dependent variable.

The Dependent variable is the thing that we're measuring.
It's the thing that we're NOT trying to control.
It's the thing that we're only trying to LOOK at.

***Question: By controlling the type of water for each pot, what difference are we trying to look at?***

Let's look at the first sentence, in the problem:

"Maverick wants to find out whether or not Miracle Grow really makes plants grow faster."

So, the difference that we are trying to look at is the SPEED (or the rate) that both plants grow.

Yes, the rate at which both plants grow. There, we have our Dependent variable.

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Finally, the hypothesis. You know what a hypothesis is, so...

What do you think will happen?

Which plant do you think will grow faster?
The one with Miracle Grow?
Or the one without Miracle Grow?

Or....do you think that both plants will grow at the same speed?

It's your guess. And there is no right or wrong answer. So go ahead, take a guess.

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Here, the next time you're doing something like this, you could try to do it in the same order that we did here.

1. Find the CONTROL (What's the same?)
2. Find the INDEPENDENT (What's different?)
3. Find the DEPENDENT (What are we trying to look at?)

I think doing things in that order makes it easier. I hope it works for you.

Answer 4

thank you very much..can you vote for best response for me too please