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Mealworm Lab/Activity

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Name__________________________<br />

Date____________<br />

Research Question<br />

What are the characteristics of living organisms?<br />

Characteristics of Living Organisms<br />

Background<br />

Science is “knowledge gained through observations and experiments”, and everything is connected to<br />

science in some way. We can connect trees, flowers, bubble gum, iPods, radios, and even gasoline to<br />

science. All of these objects are either living or not living. But does everything that is related to science<br />

have to be living? Characteristics are the “distinguishing qualities or traits” that are unique to a person<br />

or object. We all have characteristics that make us individuals, and characteristics that make us human.<br />

There are 6 characteristics that all living things must possess in order to be scientifically classified as a<br />

living organism.<br />

Objective<br />

You will be observing mealworms to determine if they are a living organism or not. If you determine<br />

that they are living, you will need to identify what characteristics or features the mealworms have that<br />

made you decide they are alive. “The mealworm is NOT a worm. It is the larval stage (grub) of the<br />

yellow mealworm beetle, also called the darkling beetle (Tenebrio molitor). “<br />

Pre-lab Questions<br />

1. What does “characteristic” mean in your own words? ______________________________________<br />

2. What is a characteristic of a dog? ______________________________________________________<br />

3. What are possible safety concerns about this lab?__________________________________________<br />

__________________________________________________________________________________<br />

Materials<br />

<strong>Mealworm</strong>s Plastic bin/petri dish magnifying glass Forceps<br />

Procedure<br />

1. Use the magnifier to make observations about your meal worm. Be detailed and use your senses.<br />

Draw a detailed sketch of your mealworm below.<br />

2. Record your observations about the mealworms: (think about your 5 senses, what is the mealworm<br />

doing and looks like-be specific!!!)


Observation/Conclusion Questions-Please answer in COMPLETE sentences<br />

1. Adaptations are physical features (body structures) or behaviors that allow an organism to survive.<br />

Make a list of physical and behavioral adaptations that you can observe:<br />

Physical Adaptations (Body Structures)<br />

Behavioral Adaptations (What they do)<br />

2. What characteristics make the mealworm so unique from other organisms?<br />

3. What needs to the mealworms have in order to survive?<br />

4. How do you know the mealworms are a living organism and that they are alive?<br />

5. You should have noticed that the mealworm responds to its surroundings and environment. The<br />

condition that causes the response is called a STIMULUS. In Part Two of this investigation, you will<br />

design an experiment to observe the effect of changes in the environment (stimuli) on the behavior<br />

(responses) of the mealworm. List all of the possible conditions that you think you could safely<br />

change and investigate (without harming the mealworms)?<br />

(hints: food, light, texture, scents, surroundings )<br />

What can you change? (IV)<br />

What can you observe? (DV)<br />

6. After discussing this as a class, choose the one condition (stimuli) that you will test as a group<br />

What we will change<br />

What we will observe<br />

7. What materials will you need? Tell your teacher what you will be able to bring in, or what you will<br />

need. (design how you will set up your bin with the mealworms in it)


Name_____________________________________<br />

Date______________________<br />

Meal Worm <strong>Lab</strong> Investigation<br />

Research Question<br />

What are the characteristics of living things?<br />

Objective<br />

Today you will investigate the one condition you chose to observe how your mealworms respond.<br />

What we will change<br />

What we will observe<br />

Procedure:<br />

Write a step by step procedure for how you will test your stimuli on the mealworms:<br />

Observations<br />

Stimulus<br />

Response<br />

OVER


Name______________________________________<br />

Date________________________<br />

<strong>Mealworm</strong> Investigation Summary<br />

Create a summary of your team's mealworm investigation. You may create a mini-poster on normal<br />

white unlined computer paper, or you may write a brief essay. Posters should have images and<br />

descriptions. You MUST include the terms stimulus and response. Your summary must respond to the<br />

following:<br />

•What environmental conditions did your group change? What was the stimulus that you<br />

tested?<br />

•Summarize the way that you set up your test (inside your bin) to determine how a mealworm<br />

would respond to that condition.<br />

•What behaviors (responses) did the mealworms demonstrate?<br />

Descrive How do y<br />

•What evidence, if any, do you have that mealworms respond to stimuli in their environment?<br />

What characteristics do the mealworms have to prove they are a living organism?<br />

Rubric<br />

Requirement Points Possible Points Earned<br />

Condition changed-stimuli 4<br />

How stimuli was tested 4<br />

Responses of mealworm 4<br />

Detailed (words or drawing) 4<br />

<strong>Lab</strong>els/Neat/Clear 4<br />

Totals 20


Name__________________________<br />

Date____________<br />

Research Question<br />

What are the characteristics of living things?<br />

Characteristics of Living Things**<br />

Background<br />

We have learned that science is “knowledge gained through observations and experiments”, and that<br />

everything is connected to science in some way. We can connect trees, flowers, bubble gum, iPods,<br />

radios, and even gasoline to science. All of these objects are either living or not living. But does<br />

everything that is related to science have to be living? Characteristics are the “distinguishing qualities<br />

or traits” that are unique to a person or object. We all have characteristics that make us individuals,<br />

and characteristics that make us human. There are 6 characteristics of living things that all living things<br />

must possess in order to be scientifically classified as living.<br />

Objective<br />

You will be observing mealworms to determine if they are a living organism or not. If you determine<br />

that they are living, you will need to identify what characteristics or features the mealworms have that<br />

made you decide they are alive. “The mealworm is NOT a worm. It is the larval stage (grub) of the<br />

yellow mealworm beetle, also called the darkling beetle (Tenebrio molitor). “<br />

Materials<br />

<strong>Mealworm</strong>s Plastic bin Forceps<br />

Procedure<br />

1. Use the magnifier to make observations about your meal worm. Be detailed and use all your<br />

senses. Draw a sketch of your mealworm below.<br />

Observations (think about your 5 senses, what is the mealworm doing and looks like-be specific!!!)<br />

Color:<br />

Texture:<br />

Shape:<br />

Movement:<br />

Observation/Conclusion Questions-Please answer in COMPLETE sentences<br />

1. What characteristics make the mealworm so unique from other organisms? (Hint:shape, texture)


2. Adaptations are physical features (body structures) or behaviors (movement/activities) that allow an<br />

organism to survive. Make a list of physical and behavioral adaptations that you see:<br />

Physical Adaptations (Body Structures they have) Behavioral Adaptations (What they do/how they move)<br />

3. What do the mealworms need in order to survive? (hint: think about what you need!)<br />

4. How do you know mealworms are a living organism? (Hint: what characteristics do they have?)<br />

5. You should have noticed that the mealworm responds to its surroundings and environment. The<br />

condition or change that causes the response is called a STIMULUS. In Part Two of this investigation,<br />

you will design an experiment to observe the effect of changes in the environment (stimuli) on the<br />

behavior (responses) of the mealworm. List some of the possible conditions that you think you<br />

could safely change and investigate (without harming the mealworms).<br />

(hints: food, light, texture, scents, surroundings )<br />

What can you change? (IV)<br />

What can you observe? (DV)<br />

6. After discussing this as a class, choose the two conditions (stimuli) that you will test as a group<br />

What we will change (IV)<br />

What we will observe (DV)<br />

7. What materials will you need? Write down and tell Miss Meyerjack what you will be able to bring in,<br />

or what you will need.<br />

8. What are the safety concerns of this lab? What will you need to do in order to maintain safe<br />

conditions?<br />

Name_____________________________________<br />

Date______________________


Research Question<br />

What are the characteristics of living things?<br />

Meal Worm <strong>Lab</strong> Investigation<br />

Objective<br />

Today you will investigate the two conditions you chose to observe how your mealworms respond.<br />

What we will change<br />

What we will observe<br />

Procedure: write a step by step procedure for how you will test your stimuli on the mealworms<br />

(you can use a separate sheet of paper)<br />

Observations<br />

Stimulus<br />

Response<br />

Name______________________________________<br />

OVER<br />

Date________________________


<strong>Mealworm</strong> Investigation Summary<br />

Create a summary of your team's mealworm investigation. You may create a mini-poster on normal<br />

white unlined computer paper, or you may write a brief essay. Posters should have color images and<br />

descriptions. You MUST include the terms stimulus and response. Your summary must respond to the<br />

following:<br />

•What environmental conditions did your group change? What was the stimulus that you<br />

tested?<br />

•Summarize the way that you set up your test to determine how a mealworm would respond to<br />

that condition.<br />

•What behaviors (responses) did the mealworms demonstrate?<br />

•What evidence, if any, do you have that mealworms respond to stimuli in their environment?<br />

What characteristics do the mealworms have to prove they are a living organism<br />

Rubric<br />

Requirement Points Possible Points Earned<br />

Condition changed-stimuli 4<br />

How stimuli was tested (what did you do) 4<br />

Responses of mealworm 4<br />

Detailed (words or drawing) 4<br />

<strong>Lab</strong>els/Neat/Clear 4<br />

Totals 20

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