What is the Claim? Experiment: Does having worms in soil help plants grow faster?

Adding worms to the soil helps the tomato plant in it grow more tomatoes.

Worms feed on plant debris in the soil. They then release nutrients in the soil making these extra nutrients available to the tomato plants

The tomato plants with worms in the soil produced an average of 15 tomatoes per plant while the plants without worms in the soil only produced an average of 10 tomatoes per plant.

What is the Evidence? Experiment: Does having worms in soil help plants grow faster?

The tomato plants with worms in the soil produced an average of 15 tomatoes per plant while the plants without worms in the soil only produced an average of 10 tomatoes per plant.

Adding worms to the soil helps the tomato plant in it grow more tomatoes.

Worms feed on plant debris in the soil. They then release nutrients in the soil making these extra nutrients available to the tomato plants

What is the Reasoning? Experiment: Does having worms in soil help plants grow faster?

Worms feed on plant debris in the soil. They then release nutrients in the soil making these extra nutrients available to the tomato plants

Adding worms to the soil helps the tomato plant in it grow more tomatoes.

The tomato plants with worms in the soil produced an average of 15 tomatoes per plant while the plants without worms in the soil only produced an average of 10 tomatoes per plant.

What is the Claim? Experiment: Does the type of wood affect how long it burns in a campfire?

Wood from hardwood trees (like maple or oak) burn for a longer time than softwoods trees (like pine or hemlock) in a campfire.

Wood from hardwood trees is generally denser than wood from softwood trees so they burn for a longer time and produce more heat.

The campfire with 3 hardwood logs burned for 1.5 hours and the campfire with 3 softwood logs burned for 1 hour.

What is the Evidence? Experiment: Does the type of wood affect how long it burns in a campfire?

The campfire with 3 hardwood logs burned for 1.5 hours and the campfire with 3 softwood logs burned for 1 hour.

Wood from hardwood trees is generally denser than wood from softwood trees so they burn for a longer time and produce more heat.

Wood from hardwood trees (like maple or oak) burn for a longer time than softwoods trees (like pine or hemlock) in a campfire.

What is the Reasoning? Experiment: Does the type of wood affect how long it burns in a campfire?

Wood from hardwood trees is generally denser than wood from softwood trees so they burn for a longer time and produce more heat.

The campfire with 3 hardwood logs burned for 1.5 hours and the campfire with 3 softwood logs burned for 1 hour.

Wood from hardwood trees (like maple or oak) burn for a longer time than softwoods trees (like pine or hemlock) in a campfire.

What is the Claim? Experiment: Does the amount of air affect how high a basketball bounces?

The more inflated a basketball is, the higher it will bounce.

As air is added to a basketball, it becomes more squished. This air then pushes more on the inside of the ball. With more air in the ball, the air starts at higher pressure and pushes back that much harder when the ball is bounced.

When dropped from a height of 3 meters, the basketball with the most air in it bounced back 2.5 meters while the basketball with the least air bounced back only 1.5 meters high.

What is the Evidence Experiment: Does the amount of air affect how high a basketball bounces?

When dropped from a height of 3 meters, the basketball with the most air in it bounced back 2.5 meters while the basketball with the least air bounced back only 1.5 meters high.

As air is added to a basketball, it becomes more squished. This air then pushes more on the inside of the ball. With more air in the ball, the air starts at higher pressure and pushes back that much harder when the ball is bounced.

The more inflated a basketball is, the higher it will bounce.

What is the Reasoning? Experiment: Does the amount of air affect how high a basketball bounces?

As air is added to a basketball, it becomes more squished. This air then pushes more on the inside of the ball. With more air in the ball, the air starts at higher pressure and pushes back that much harder when the ball is bounced.

The more inflated a basketball is, the higher it will bounce.

When dropped from a height of 3 meters, the basketball with the most air in it bounced back 2.5 meters while the basketball with the least air bounced back only 1.5 meters high.

What is the Claim? Experiment: Does the color of a shirt affect the amount of heat it absorbs?

A darker shirt absorbs more heat than a light-colored shirt.

When a white shirt and a dark shirt were put in the sunshine with a thermometer underneath them, the darker shirt hit a temperature of 140F while the light shirt only recorded a temperature of 85F.

A black object absorbs all wavelengths of light and converts them into heat, so the object gets warm. A white object reflects all wavelengths of light, so the light is not converted into heat and the temperature of the object does not increase noticeably.

What is the Evidence? Experiment: Does the color of a shirt affect the amount of heat it absorbs?

When a white shirt and a dark shirt were put in the sunshine with a thermometer underneath them, the darker shirt hit a temperature of 140F while the light shirt only recorded a temperature of 85F.

A darker shirt absorbs more heat than a light-colored shirt.

A black object absorbs all wavelengths of light and converts them into heat, so the object gets warm. A white object reflects all wavelengths of light, so the light is not converted into heat and the temperature of the object does not increase noticeably.

What is the Reasoning? Experiment: Does the color of a shirt affect the amount of heat it absorbs?

A black object absorbs all wavelengths of light and converts them into heat, so the object gets warm. A white object reflects all wavelengths of light, so the light is not converted into heat and the temperature of the object does not increase noticeably.

A darker shirt absorbs more heat than a light-colored shirt.

When a white shirt and a dark shirt were put in the sunshine with a thermometer underneath them, the darker shirt hit a temperature of 140F while the light shirt only recorded a temperature of 85F.

Review for Quiz #2

Authored by Anthony Dake

Science

7th Grade

CCSS covered

Used 6+ times

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22 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does CER stand for in the context of scientific research?

Critical Evaluation and Results

Claim, Evidence, Reasoning

Controlled Experiment and Results

Conclusive Evidence and Reasoning

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is NOT a step in the CER framework?

Reasoning

Evidence

Experimentation

Claim

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the purpose of the Claim step in the CER framework?

To collect data and observations

To provide a statement that tries to answer a question

To analyze the limitations of the study

To form a conclusion

What is the purpose of the Evidence step in the CER framework?

To analyze the limitations of the study

To examine the results of an experiment

To propose a hypothesis

To provide data and observations that support the claim

What is the purpose of the Reasoning step in the CER framework?

To explain the logical connection between the claim and the evidence

To collect data and observations

To provide a statement that tries to answer a question

To propose a hypothesis

In the CER framework, what does the Evidence step involve?

Collecting background information

Proposing a hypothesis

Providing data and observations that support the claim

Examining the limitations of the study

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which state of matter has a definite shape and volume?

None

Liquid

Solid

Gas

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Review for Quiz #2

What does CER stand for in the context of scientific research?

Which of the following is NOT a step in the CER framework?

What is the purpose of the Claim step in the CER framework?

What is the purpose of the Evidence step in the CER framework?

What is the purpose of the Reasoning step in the CER framework?

In the CER framework, what does the Evidence step involve?

Which state of matter has a definite shape and volume?

Which state of matter has particles that are closely packed but able to flow and take the shape of the container?

Which state of matter has particles that are loosely packed and can move past each other?

Which state of matter has particles that are packed tightly together and vibrate in fixed positions?

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