Sem. 1 Exam Review: Scientific Method

Plant Growth and Sunlight

Students will grow three plants, keeping them in different amounts of sunlight each day. Plant A gets 1 hour of sunlight, Plant B gets 4 hours, and Plant C gets 8 hours. All other conditions, such as the amount of water, type of soil, and pot size, are kept the same.

What is the independent variable?

• The growth of the plants, measured in height.

• Type of plant, amount of water, type of soil, pot size.

• The amount of sunlight each plant receives.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

Plant Growth and Sunlight

Students will grow three plants, keeping them in different amounts of sunlight each day. Plant A gets 1 hour of sunlight, Plant B gets 4 hours, and Plant C gets 8 hours. All other conditions, such as the amount of water, type of soil, and pot size, are kept the same.

What is the dependent variable?

• The growth of the plants, measured in height.

• Type of plant, amount of water, type of soil, pot size.

• The amount of sunlight each plant receives.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

Plant Growth and Sunlight

Students will grow three plants, keeping them in different amounts of sunlight each day. Plant A gets 1 hour of sunlight, Plant B gets 4 hours, and Plant C gets 8 hours. All other conditions, such as the amount of water, type of soil, and pot size, are kept the same.

What is the constant?

• The growth of the plants, measured in height.

• Type of plant, amount of water, type of soil, pot size.

• The amount of sunlight each plant receives.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-4

The Effect of Exercise on Heart Rate

Students will measure their heart rate at rest, then after 2 minutes of walking, 2 minutes of jogging, and 2 minutes of running. Each student performs these activities in a controlled environment, wearing similar attire and on the same type of surface.

What is the constant?

• The type of physical activity.

• The environment where the activities are performed.

• The heart rate of the students after each activity.

Tags

NGSS.MS-ETS1-2

The Effect of Exercise on Heart Rate

Students will measure their heart rate at rest, then after 2 minutes of walking, 2 minutes of jogging, and 2 minutes of running. Each student performs these activities in a controlled environment, wearing similar attire and on the same type of surface.

What is the dependent variable?

• The type of physical activity.

• The environment where the activities are performed.

• The heart rate of the students after each activity.

Tags

NGSS.MS-PS3-5

The Effect of Exercise on Heart Rate

Students will measure their heart rate at rest, then after 2 minutes of walking, 2 minutes of jogging, and 2 minutes of running. Each student performs these activities in a controlled environment, wearing similar attire and on the same type of surface.

What is the independent variable?

• The type of physical activity.

• The environment where the activities are performed.

• The heart rate of the students after each activity.

Tags

NGSS.MS-PS3-4

Effect of Water on Seed Germination

Scenario: Students will plant seeds in three pots and water them with different amounts each day. Pot A receives 50 ml, Pot B 100 ml, and Pot C 150 ml of water. All other conditions like sunlight, type of soil, and pot size are kept the same.

What is the independent variable?

• Amount of water each pot receives

• Germination rate of seeds.

• Type of seed, amount of sunlight, type of soil, pot size

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Effect of Water on Seed Germination

Scenario: Students will plant seeds in three pots and water them with different amounts each day. Pot A receives 50 ml, Pot B 100 ml, and Pot C 150 ml of water. All other conditions like sunlight, type of soil, and pot size are kept the same.

What is the dependent variable?

• Amount of water each pot receives

• Germination rate of seeds.

• Type of seed, amount of sunlight, type of soil, pot size

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Effect of Water on Seed Germination

Scenario: Students will plant seeds in three pots and water them with different amounts each day. Pot A receives 50 ml, Pot B 100 ml, and Pot C 150 ml of water. All other conditions like sunlight, type of soil, and pot size are kept the same.

What is the constant?

• Amount of water each pot receives

• Germination rate of seeds.

• Type of seed, amount of sunlight, type of soil, pot size

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The Effect of Exercise on Pulse Rate

Scenario: Students will measure their pulse rates at rest, then after 5 minutes of walking, 5 minutes of jogging, and 5 minutes of running. Each student performs these activities under similar conditions, wearing comfortable clothing and on a flat surface.

What is the constant?

• Type of physical activity

• Pulse rate of the students after each activity

• Environment where the activities are performed, duration of each activity, and attire worn.