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The instructions for how to carry out a science experiment can be found in an experimental
protocol.
An experimental protocol often includes the list of materials you need for the experiment. The protocol also includes the procedure, which is a list of steps for carrying out the experiment. Some experimental protocols include data tables for recording the results of the experiment.
The experimental protocol below is for an experiment investigating tomato plant growth. Read through the experimental protocol, then answer the question below.
Materials:
a large plastic container
water
10 small tomato plants
10 (8-inch) pots
1 (40-quart) bag of potting soil
10 earthworms
Procedure:
Pour the soil into the large plastic container and add water until the soil is moist.
Fill the pots with the moistened soil. Label each pot with a number from 1 through 10.
Plant one tomato plant in each pot.
In pots 6 through 10, add two earthworms just beneath the soil surface.
Place all of the pots next to each other in a warm, sunny area.
Once a day, give each plant four ounces of water.
After three months, count the number of tomatoes on each plant.
Record your results in the following tables.
Data tables:
Plants grown in soil without earthworms
Pot 1 Pot 2 Pot 3 Pot 4 Pot 5 number of tomatoes
Plants grown in soil with earthworms
Pot 6 Pot 7 Pot 8 Pot 9 Pot 10 number of tomatoes
Which of the following materials are required for this experiment? Select all that apply.
Look again at the experimental protocol. Then answer the question below.
Materials:
a large plastic container
water
10 small tomato plants
10 (8-inch) pots
1 (40-quart) bag of potting soil
10 earthworms
Procedure:
Pour the soil into the large plastic container and add water until the soil is moist.
Fill the pots with the moistened soil. Label each pot with a number from 1 through 10.
Plant one tomato plant in each pot.
In pots 6 through 10, add two earthworms just beneath the soil surface.
Place all of the pots next to each other in a warm, sunny area.
Once a day, give each plant four ounces of water.
After three months, count the number of tomatoes on each plant.
Record your results in the following tables.
Data tables:
Plants grown in soil without earthworms
Pot 1 Pot 2 Pot 3 Pot 4 Pot 5 number of tomatoes
Plants grown in soil with earthworms
Pot 6 Pot 7 Pot 8 Pot 9 Pot 10 number of tomatoes
Which of the following should you do before planting the tomato plants? Select all that apply.
Look again at the experimental protocol. Then answer the question below.
Materials:
a large plastic container
water
10 small tomato plants
10 (8-inch) pots
1 (40-quart) bag of potting soil
10 earthworms
Procedure:
Pour the soil into the large plastic container and add water until the soil is moist.
Fill the pots with the moistened soil. Label each pot with a number from 1 through 10.
Plant one tomato plant in each pot.
In pots 6 through 10, add two earthworms just beneath the soil surface.
Place all of the pots next to each other in a warm, sunny area.
Once a day, give each plant four ounces of water.
After three months, count the number of tomatoes on each plant.
Record your results in the following tables.
Data tables:
Plants grown in soil without earthworms
Pot 1 Pot 2 Pot 3 Pot 4 Pot 5 number of tomatoes
Plants grown in soil with earthworms
Pot 6 Pot 7 Pot 8 Pot 9 Pot 10 number of tomatoes
Which variables are kept the same for all pots in the experiment? Select all that apply.
Look again at the experimental protocol. Then complete the question below.
Materials:
a large plastic container
water
10 small tomato plants
10 (8-inch) pots
1 (40-quart) bag of potting soil
10 earthworms
Procedure:
Pour the soil into the large plastic container and add water until the soil is moist.
Fill the pots with the moistened soil. Label each pot with a number from 1 through 10.
Plant one tomato plant in each pot.
In pots 6 through 10, add two earthworms just beneath the soil surface.
Place all of the pots next to each other in a warm, sunny area.
Once a day, give each plant four ounces of water.
After three months, count the number of tomatoes on each plant.
Record your results in the following tables.
Data tables:
Plants grown in soil without earthworms
Pot 1 Pot 2 Pot 3 Pot 4 Pot 5 number of tomatoes
Plants grown in soil with earthworms
Pot 6 Pot 7 Pot 8 Pot 9 Pot 10 number of tomatoes
Complete the following statement.
In this experiment, the number of earthworms in the soil is the _____variable.
The number of tomatoes on the plants after three months is the_____ variable.
Look again at the experimental protocol. Then answer the question below.
Materials:
a large plastic container
water
10 small tomato plants
10 (8-inch) pots
1 (40-quart) bag of potting soil
10 earthworms
Procedure:
Pour the soil into the large plastic container and add water until the soil is moist.
Fill the pots with the moistened soil. Label each pot with a number from 1 through 10.
Plant one tomato plant in each pot.
In pots 6 through 10, add two earthworms just beneath the soil surface.
Place all of the pots next to each other in a warm, sunny area.
Once a day, give each plant four ounces of water.
After three months, count the number of tomatoes on each plant.
Record your results in the following tables.
Data tables:
Plants grown in soil without earthworms
Pot 1 Pot 2 Pot 3 Pot 4 Pot 5 number of tomatoes
Plants grown in soil with earthworms
Pot 6 Pot 7 Pot 8 Pot 9 Pot 10 number of tomatoes
Which question can this experiment answer?
The instructions for how to carry out a science experiment can be found in an experimental protocol.
An experimental protocol often includes the list of materials you need for the experiment. The protocol also includes the procedure, which is a list of steps for carrying out the experiment. Some experimental protocols include data tables for recording the results of the experiment.
The experimental protocol below is for an experiment investigating pepper plant growth. Read through the experimental protocol, then answer the question below.
Materials:
a large plastic container
water
10 small pepper plants
10 (8-inch) pots
1 (40-quart) bag of potting soil
5 teaspoons of controlled-release fertilizer
Procedure:
Pour the soil into the large plastic container and add water until the soil is moist.
Fill each pot with moistened soil. Label each pot with a number from 1 through 10.
Plant one pepper plant in each pot.
In pots 6 through 10, mix one teaspoon of controlled-release fertilizer into the top two inches of soil.
Place all of the pots next to each other in a warm, sunny area.
Once a day, give each plant four ounces of water.
After three months, count the number of peppers on each plant.
Record your results in the following tables.
Data tables:
Plants grown in soil without fertilizer
Pot 1 Pot 2 Pot 3 Pot 4 Pot 5 number of peppers
Plants grown in soil with fertilizer
Pot 6 Pot 7 Pot 8 Pot 9 Pot 10 number of peppers
Which of the following materials are required for this experiment? Select all that apply.
Look again at the experimental protocol. Then answer the question below.
Materials:
a large plastic container
water
10 small pepper plants
10 (8-inch) pots
1 (40-quart) bag of potting soil
5 teaspoons of controlled-release fertilizer
Procedure:
Pour the soil into the large plastic container and add water until the soil is moist.
Fill each pot with moistened soil. Label each pot with a number from 1 through 10.
Plant one pepper plant in each pot.
In pots 6 through 10, mix one teaspoon of controlled-release fertilizer into the top two inches of soil.
Place all of the pots next to each other in a warm, sunny area.
Once a day, give each plant four ounces of water.
After three months, count the number of peppers on each plant.
Record your results in the following tables.
Data tables:
Plants grown in soil without fertilizer
Pot 1 Pot 2 Pot 3 Pot 4 Pot 5 number of peppers
Plants grown in soil with fertilizer
Pot 6 Pot 7 Pot 8 Pot 9 Pot 10 number of peppers
Which of the following should you do after planting the pepper plants? Select all that apply.
Look again at the experimental protocol. Then answer the question below.
Materials:
a large plastic container
water
10 small pepper plants
10 (8-inch) pots
1 (40-quart) bag of potting soil
5 teaspoons of controlled-release fertilizer
Procedure:
Pour the soil into the large plastic container and add water until the soil is moist.
Fill each pot with moistened soil. Label each pot with a number from 1 through 10.
Plant one pepper plant in each pot.
In pots 6 through 10, mix one teaspoon of controlled-release fertilizer into the top two inches of soil.
Place all of the pots next to each other in a warm, sunny area.
Once a day, give each plant four ounces of water.
After three months, count the number of peppers on each plant.
Record your results in the following tables.
Data tables:
Plants grown in soil without fertilizer
Pot 1 Pot 2 Pot 3 Pot 4 Pot 5 number of peppers
Plants grown in soil with fertilizer
Pot 6 Pot 7 Pot 8 Pot 9 Pot 10 number of peppers
What data are being collected and recorded in the tables?
