A group of high school students are conducting a scientific investigation in their biology class to study the effect of different types of fertilizer on the growth of tomato plants. Which of the following statements about their investigation is correct?(1 point)

Question

Responses

The type of tomato plant is the dependent variable and the independent variable is the type of fertilizer
The type of tomato plant is the dependent variable and the independent variable is the type of fertilizer

The type of fertilizer is the dependent variable and the independent variable is the type of tomato plant.
The type of fertilizer is the dependent variable and the independent variable is the type of tomato plant.

The growth of the tomato plants is the dependent variable and the type of fertilizer is the independent variable.
The growth of the tomato plants is the dependent variable and the type of fertilizer is the independent variable.

The type of fertilizer is the dependent variable and the independent variable is the growth of the tomato plants.

Answer 1

The correct statement about their investigation is:

The growth of the tomato plants is the dependent variable and the type of fertilizer is the independent variable.

In this context, the growth of the tomato plants (such as height, number of leaves, etc.) is what the students are measuring and is influenced by the type of fertilizer they apply, making it the dependent variable. The type of fertilizer is the factor that the students are changing in the experiment, making it the independent variable.

Answer 2

How do value judgments impact the practice of science?(1 point)
Responses

Value judgments are strictly prohibited in the scientific community to maintain objectivity.
Value judgments are strictly prohibited in the scientific community to maintain objectivity.

Value judgments are only relevant in social sciences and have no bearing on natural sciences.
Value judgments are only relevant in social sciences and have no bearing on natural sciences.

Value judgments can affect the interpretation of data and the direction of scientific inquiry.
Value judgments can affect the interpretation of data and the direction of scientific inquiry.

Value judgments have no influence on scientific research and conclusions.
Value judgments have no influence on scientific research and conclusions.

Answer 3

The correct statement regarding how value judgments impact the practice of science is:

Value judgments can affect the interpretation of data and the direction of scientific inquiry.

Value judgments can influence how scientists choose what questions to investigate, how they interpret their findings, and the implications they draw from their research. This can affect both the direction of scientific inquiry and the application of scientific knowledge.

Answer 4

What is the proper procedure for disposing of flammable materials in a laboratory setting?(1 point)
Responses

Dispose of them in a designated flammable waste container.
Dispose of them in a designated flammable waste container.

Leave them on the laboratory bench for the janitor to handle.
Leave them on the laboratory bench for the janitor to handle.

Rinse them down the sink with plenty of water.
Rinse them down the sink with plenty of water.

Place them in the regular trash can.

Answer 5

The correct procedure for disposing of flammable materials in a laboratory setting is:

Dispose of them in a designated flammable waste container.

This ensures that the materials are handled safely and in accordance with proper laboratory safety protocols.

Answer 6

What is a primary hazard associated with this image?

(1 point)
Responses

They can cause fires and explosions if improperly stored.
They can cause fires and explosions if improperly stored.

They can generate large amounts of dust, posing inhalation risks
They can generate large amounts of dust, posing inhalation risks

They can cause severe burns to skin and damage to eyes.
They can cause severe burns to skin and damage to eyes.

They can release toxic fumes when mixed with water.
They can release toxic fumes when mixed with water.
Question 5

Answer 7

Without seeing the specific image you're referencing, I can't provide a definitive answer. However, I can explain how to determine the primary hazard associated with any chemical or material shown in an image based on common categories:

1. Flammable materials: If the image depicts flammable liquids or solids, the primary hazard would likely be that they can cause fires and explosions if improperly stored.

2. Dusty materials: If the image shows powders or particulates, a primary hazard might be inhalation risks from generating large amounts of dust.

3. Corrosives: If the image features acids or bases, severe burns to skin and damage to eyes would be a key hazard.

4. Reactive materials: If the image includes reactive substances that could release toxic fumes upon contact with water or other chemicals, then that would be the primary hazard.

To choose the right response, you should select the option that aligns with the characteristics of the materials represented in the image you are referring to. If you can describe the image or give me specific hints about it, I can certainly help narrow it down!

Answer 8

How is a hypothesis determined to be correct?(1 point)
Responses

By consulting scientific authorities
By consulting scientific authorities

By conducting surveys and polls
By conducting surveys and polls

By conducting experiments and analyzing data
By conducting experiments and analyzing data

By relying on personal beliefs

Answer 9

The correct way to determine if a hypothesis is correct is:

By conducting experiments and analyzing data.

A hypothesis is tested through controlled experiments, and the results of these experiments are analyzed to see if they support or refute the hypothesis. This process is a fundamental part of the scientific method.

Answer 10

In astronomy, the theory of general relativity, proposed by Albert Einstein, has significant explanatory power. This prediction has been confirmed through numerous observations and experiments, demonstrating the theory's ability to accurately explain and predict complex astronomical phenomena. Why is this an example of explanatory power in a scientific hypothesis?(1 point)
Responses

It is based on mathematical calculations, which are always accurate.
It is based on mathematical calculations, which are always accurate.

It has been proven true in every experiment conducted.
It has been proven true in every experiment conducted.

It has accurately predicted complex astronomical phenomena.
It has accurately predicted complex astronomical phenomena.

It has been accepted by the scientific community for a long time.

Answer 11

The correct response to why the theory of general relativity is an example of explanatory power in a scientific hypothesis is:

It has accurately predicted complex astronomical phenomena.

Explanatory power refers to the ability of a theory or hypothesis to explain and predict phenomena observed in the natural world. The theory of general relativity has successfully predicted various complex astronomical events, demonstrating its robustness and reliability as a scientific framework.