Alana conducted an experiment to study plant growth. Alana planted three sets of bean seeds: Set A in nutrient-rich soil, Set B in sandy soil with little water, and Set C in nutrient-rich soil but with no light. After three weeks, Alana observed that Set A had the tallest plants, Set B had small and weak plants, and Set C showed no growth.

• GOT IT!

• I don't get it.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the most likely reason why Set A had the tallest plants?

RE-READ PASSAGE IF NEEDED: Alana conducted an experiment to study plant growth. Alana planted three sets of bean seeds: Set A in nutrient-rich soil, Set B in sandy soil with little water, and Set C in nutrient-rich soil but with no light. After three weeks, Alana observed that Set A had the tallest plants, Set B had small and weak plants, and Set C showed no growth.

• The plants had access to nutrients, water, and light.

• The seeds were planted closer together.

• The plants received too much water.

• The plants were exposed to constant wind.

Answer explanation

Set A had the tallest plants because they had access to nutrients, water, and light, which are essential for healthy plant growth. In contrast, Sets B and C lacked one or more of these critical factors.

Tags

NGSS.MS-LS1-5

Why did the seeds in Set C fail to grow?

RE-READ PASSAGE IF NEEDED: Alana conducted an experiment to study plant growth. Alana planted three sets of bean seeds: Set A in nutrient-rich soil, Set B in sandy soil with little water, and Set C in nutrient-rich soil but with no light. After three weeks, Alana observed that Set A had the tallest plants, Set B had small and weak plants, and Set C showed no growth.

• The soil lacked nutrients.

• The plants did not receive light for photosynthesis.

• The soil was too dry.

• The seeds were not watered daily.

Answer explanation

The seeds in Set C failed to grow because they did not receive light, which is essential for photosynthesis. Without light, the plants cannot produce the energy needed for growth.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to produce glucose (a form of sugar) and oxygen. This process occurs in the chloroplasts of plant cells and provides the energy needed for growth and development.

Categorize the following as reactants and products in the photsynthesis process.

Groups:

(a) Reactants

,

(b) Products

• water

• sunlight

• carbon dioxide

• glucose

• oxygen

Tags

NGSS.MS-LS1-6

Which factor primarily affects the process of photosynthesis in plants?

• Soil nutrients

• Temperature

• Light availability

• Seed size

Answer explanation

Light availability is the primary factor affecting photosynthesis, as it provides the energy needed for plants to convert carbon dioxide and water into glucose and oxygen. Without sufficient light, the process cannot occur effectively.

Tags

NGSS.MS-LS1-6

Which of the following best supports the idea that plants are systems of cells?

• Roots absorb water for the plant.

• Cells in the leaves perform photosynthesis to produce energy.

• Stems help the plant stand upright.

• Flowers attract pollinators.

Answer explanation

Cells in the leaves perform photosynthesis to produce energy directly supports the idea that plants are systems of cells, as it highlights the function of cells in a vital process for the plant's survival.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

Match each factor to its effect on plant growth:

• Promotes healthy growth and development

• Sandy soil

• Helps transport nutrients within the pla

• Water

• Enables photosynthesis

• Nutrients in soil

• Limits root stability and nutrient uptak

• Light availability

Tags

NGSS.MS-LS1-5

Reorder the stages of how light affects plant growth:

• Photosynthesis converts light energy into chemical energy.

• Light is absorbed by chloroplasts.

• Glucose is transported to different parts of the plant.

• Energy is used to produce glucose for growth.

Tags

NGSS.MS-LS1-6

Categorize the following as "Internal Factors" or "External Factors" affecting plant growth:

Groups:

(a) Internal Factor

,

(b) External Factor

• Nutrients

• Cell Division

• Light

• Hormone

Tags

NGSS.MS-LS1-5

Complete the sentences by selecting the correct option from the dropdown: ​ The cells in a plant's leaves use ​ ​ (a)   to perform photosynthesis.

• water
• soil nutrients
• light energy

Tags

NGSS.MS-LS1-6