3rd grade Science Review

Luna, Isla, and Mason were observing the growth of a tomato plant in their school garden. Which correctly shows the development of a tomato plant from seed to adult?

• a) 1, 2, 3, 4

• b) 4, 3, 2, 1

• c) 3, 1, 2, 4

• d) 4. 2. 1. 3

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Henry and Mia conducted a four-week biology experiment with two plants. Henry placed his plant on a sunny windowsill, while Mia kept her plant in a closet under a lamp. Based on the results they recorded, which conclusion can be drawn from their investigation?

• Plants cannot grow without sunlight.

• Taller plants grow faster than shorter plants.

• Older plants grow faster than younger plants.

• Plants grow faster in sunlight than in lamplight.

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During a biology class, Anika observed the life cycle of ladybugs. Initially, they start as eggs. After hatching from the eggs, they become larvae. In the third stage, they attach themselves to a leaf and shed their skin. Finally, they develop their distinctive red color as they mature. Anika noted that the image shown in class was of a ladybug pupa. Which stage of the life cycle is being described?

• First

• Second

• Third

• Fourth

During a biology class, Liam asked, 'Which stage of the frog life cycle is comparable to the adult stage in the butterfly life cycle?'

• A. Adult frog

• B. Tadpole

• C. Egg and tadpole stages

• D. Egg

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Grace is studying botany and has a fern in her garden, which is located in a warm, wet region. Which of the following conditions is MOST LIKELY to help her fern thrive?

• A. a snowstorm

• B. strong wind

• C. a very dry month

• D. rainy weather

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NGSS.MS-LS1-5

Sophia, Oliver, and Jackson are studying botany and focusing on desert ecosystems. They learned that thousands of different plants live in these ecosystems around the world. Which of the following do ALL desert plants have in common?

• A. They have prickles or thorns

• B. They can survive without water

• C. They can live without much rain

• D. They are poisonous to desert animals

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Imagine a scenario where a fire breaks out in a large area. Oliver, a biologist, is studying arboreal animals that spend most of their lives in trees. In which of the following habitats would this fire cause the death of many arboreal animals?

• A. desert

• B. forest

• C. grassland

• D. ocean

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William and Zoe are studying a diagram of a food chain in their biology class that shows a sequence of organisms. What is missing from this diagram that would help depict (describe) the energy flow? Select TWO correct answers.

• arrows

• water

• moon

• producer

• air

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In the food chain below, from where does the energy originate?

• grass

• sun

• grasshopper

• owl

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In this real-world scenario, imagine a small ecosystem in a meadow. Removing which living factor will have the MOST impact on this food chain?

• sun

• grass

• grasshopper

• robin

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