A high-interest Grade 4 informational text assessment about mealworms, metamorphosis, and building a simple mealworm farm. Includes 11 multiple-choice questions that check main idea, key details, text structure (headings/steps), author’s purpose, and context-clue vocabulary. Students read about the four life stages (egg, larva, pupa, adult), farm materials (oatmeal/bran bedding and a moisture slice), and care tips (frass, temperature, hibernation). Built with StandardSet’s standards-first approach and paired with a clear answer key for fast grading. Differentiated, scaffolded, 3rd grade reading level

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Have you ever seen a mealworm? You might think they are worms because of their name, but here is a surprise: mealworms aren't worms at all! They are actually the larvae (baby stage) of a creepy-crawly insect called the Darkling Beetle.
Growing mealworms is a fun science project. It lets you watch an insect change its shape and grow right before your eyes. This amazing change is called metamorphosis.
Just like butterflies, mealworms go through four big changes in their life.
Egg: It all starts with a tiny white bean-shaped egg. They are so small, they are hard to see!
Larva (Mealworm): A tiny mealworm hatches from the egg. This is the stage you usually buy at the pet store. They love to eat and grow. As they get bigger, they shed their skin (molt) many times.
Pupa: When the mealworm is done growing, it turns into a white, alien-looking sleeping bag called a pupa. It doesn't eat or move much during this time. Inside, its body is changing completely.
Adult (Darkling Beetle): Finally, a beetle comes out of the pupa! At first, it is white and soft, but soon it turns black and hard. The beetle lays new eggs, and the cycle starts all over again.
You can make a happy home for mealworms with things you probably have at home.
Add Bedding: Pour about 2 inches of oatmeal into your container.
Add Moisture: Place the slice of potato or carrot on top of the oats. This gives the mealworms water to drink.
Add Mealworms: Gently put your mealworms into the container.
Air Holes: Poke small holes in the lid so they can breathe, or leave the lid off if the sides are slippery (mealworms can't climb slippery walls!).
Mealworms are easy pets, but they still need care.
Change the Food: Every few days, check the potato or carrot. If it looks dry or moldy, throw it away and put in a fresh piece.
Keep it Clean: After a while, you might see a dusty sand at the bottom. This is called frass (mealworm poop!). You can sift it out using a strainer to keep their home clean.
Temperature: Keep them in a warm room. If it gets too cold, they will stop growing. If you put them in the refrigerator, they will go to sleep (hibernate)!
People grow mealworms for many reasons. Some people use them to feed pets like lizards, birds, or hedgehogs. Others grow them to learn about science and insect life cycles. Believe it or not, in some parts of the world, people even cook and eat mealworms as a healthy snack!
Based on the passage, why does the author suggest using a plastic container with slippery sides for the mealworm farm?
So the mealworms cannot crawl out of the container easily
So the oatmeal bedding can stay cold and fresh for longer
So the lid of the container can close more tightly each time
So the potato or carrot will not dry out as quickly inside
Standard: RI.4.1
What is the main idea of the passage?
Mealworms are helpful pets that are very easy to take care of at home.
Mealworms go through four life stages, and you can build a farm to watch these changes.
Darkling beetles lay eggs that are hard to see because they are very tiny and white.
People like to use mealworms to feed pets like lizards, birds, and hedgehogs.
Standard: RI.4.2
A class wants to watch their mealworms change through all four life stages. Based on the passage, why should they NOT keep their mealworm farm in the refrigerator?
Because the refrigerator will make the potato or carrot moldy faster.
Because the refrigerator will make the beetles lay too many eggs at once.
Because the refrigerator will cause the oatmeal bedding to dry out quickly.
Because the refrigerator will make the mealworms go to sleep instead of growing.
Standard: RI.4.1
Which sentence best states the main idea of the entire passage?
The passage explains how mealworms change through four stages in their life cycle, from egg to beetle.
The passage explains the steps for setting up a mealworm farm inside a plastic container at home.
The passage explains what mealworms are, how they grow and change, and how people can raise and use them.
The passage explains how to care for mealworms by giving them food, water, warmth, and a clean home.
Standard: RI.4.2
Why is it important to change the slice of potato or carrot every few days when you are taking care of your mealworms?
It gives them more space to move around in the container.
It keeps their food and water fresh and safe for them.
It helps them change into beetles much more quickly.
It keeps the oatmeal bedding from turning into dusty frass.
Standard: RI.4.3
Read this sentence from paragraph 2:
'It lets you watch an insect change its shape and grow right before your eyes. This amazing change is called metamorphosis.'
Based on this sentence, what does the word metamorphosis most likely mean?
a kind of food that insects like to eat
a safe place where insects can live
a way insects move from place to place
a big change in how an insect looks and grows
Standard: RI.4.4
The author uses the heading "Steps:" and short directions right after it.
How does organizing this part of the passage this way help the reader?
to list the foods mealworms like best in a simple list of facts
to compare mealworms with other insects by giving many interesting details
to tell why people all over the world use and grow mealworms
to show the order of actions so readers can follow the directions
Standard: RI.4.5
Based on details from the passage, what is the author's main purpose for writing this text?
to tell about a fun science project where students can watch mealworms change
to describe what mealworms and beetles look like during each stage of life
to persuade readers to try eating mealworms as a new healthy snack food
to explain how mealworms live, grow, are raised, and used by people
Standard: RI.4.6
Read this sentence from paragraph 7:
'The beetle lays new eggs, and the cycle starts all over again.'
What does the word cycle most likely mean as it is used in this sentence?
a ride on a bicycle
a set of wheels that turn
a place where insects live
a set of steps that happens over and over
Standard: L.4.4
Read this sentence from paragraph 2:
It lets you watch an insect change its shape and grow right before your eyes.
What does the phrase "right before your eyes" mean in this sentence?
It means the insect is so close that it is almost touching your face.
It means the insect has very big eyes that are easy for you to see.
It means the insect grows new eyes quickly when you look at it.
It means you can see the insect change and grow while you are watching.
Standard: L.4.5
Read this sentence from paragraph 17:
"If you put them in the refrigerator, they will go to sleep (hibernate)!"
Which word best completes the sentence?
"Some animals ______ in caves during winter when it is very cold."
molt
hatch
hibernate
grow
Standard: L.4.6
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