Illuminate Test

Micah suggests using the glass jar to model the cell membrane. Use the drop down menus to choose an advantage and a disadvantage of using a glass jar to model the function of a cell membrane

• Advantage: Would hold and protect inner contents

  Disadvantage : Would not allow any materials to pass through membrane.

• Advantage: Would not hold and allow inner contents to spill

  Disdavantage: Would allow any materials to pass through

Tags

NGSS.MS-LS1-2

Jennifer makes two different cell models (Cell X and Cell Y) using some of the materials shown. Cell X has many more jelly beans in its model than Cell Y. Use the drop down menus below to explain the difference in the models based on the function of the cell part represented by the jelly beans.

• Cell X is likely a cell that needs a lot of energy since the jelly beans represent mitochondria. The function of the mitochondria is to produce energy for the cell. Cell Y does not need as many jelly beans since it uses less energy.

• Cell X is likely a cell that needs no energy since the jelly beans represent candy.

Tags

NGSS.MS-LS1-2

Komar claims that the grasses are living and that the rocks are non living. Drag and drop labels into the chart below to indicate direct observations Komar could make during an investigation to use in defense of his claim.

• Grass Characteristics

  Cells are present under a microscope.

  
  

  Rock Characteristics

  Cells are not present under a microscope

• Grass Characteristics

  Cells are not present under a microscope

  
  

  Rock Characteristics

  Cells are present under a microscope

Tags

NGSS.MS-LS1-1

Kelli and Komar want ti determine If the grass in the ecosystem is unicellular or multicellular. Which investigation would BEST help them?

• Measure the mass of the cells in the organism.

• Count the number of cells in the organism.

• Measure the length of the cells in the organism.

• Observe the shape of the cells in the organism.

Tags

NGSS.MS-LS1-1

Kelli and Komar make the following arguments during their observations.

Kelli’s Argument : Cells are the smallest living unit of matter.

Komar’s Argument : Organisms are the smallest living unit of matter.

One of these arguments is correct. Select the correct argument and the evidence that supports it.

• Kelli’s argument is correct. Observations of grass under a microscope would show that grass is made of cells, which are living.

• Kelli’s argument is correct. Observations of grass in nature would show that grass is smaller than all of the surrounding plants.

• Komar’s argument is correct. Observations of grass under a microscope would show that grass is made of cells, which are living.

• Komar’s argument is correct. Observations of grass in nature would show that grass is smaller than all of the surrounding plants.

Tags

NGSS.MS-LS1-1

Use the drop down menus below to explain why some parts of Ecosystem Part 1 are not visible from the drawings made by the students.

• Some parts of Ecosystem Part 1 cannot be observed with the human eye because they are too small. A microscope can be used to view these parts since it shows parts that exist on a smaller scale than can be observed with the human eye.

• Some parts of Ecosystem Part 1 can be observed with the human eye because they are too big. A telescope can be used to view these parts since it shows parts that exist on a larger scale that can be observed with the human eye.

Tags

NGSS.MS-LS1-1

Label 4 in the diagram shows the person’s arm moving toward the rose point. The diagram show two muscles in the person’s arm. These muscles help move the arm. Drag and drop the labels provided into the boxes below to explain how muscles are organized in the human body.

• 1. Muscles are part of an organ system
  2. Muscles are tissues that are made of cells.
• 1. Muscles are a part of tissues
  2. Muscles are cells that are made of organs.

Tags

NGSS.MS-LS1-3

Use the drop down menus to provide an argument, supported by the model shown, that describes the events that occur after the student touches sharp thorns.

• In step 1, the nervous system receives the information from the sensory receptors. In step 2, the information is sent to the spinal cord. In step 3, the spinal cord interprets the information and reacts. In step 4, the reaction message is sent by the nervous system . Step 5 results in movement by the muscular system away from the plant.

• In step 1 , the circulatory system receives the information from the blood. In step 2, the information is sent to the heart. In step 3 the heart pumps the blood and contracts. In step 4, the blood moves to the digestive system. Step 5 results in movement by the digestive system.

Tags

NGSS.MS-LS1-3

A student argues that the human body is made of one system. Using evidence from the model, which BEST describes the student ‘s argument ?

• The model supports the argument because it shows many parts of one body system all working to help protect the student.

• The models supports the argument because it shows many body systems working together to help protect the student.

• The model does not support the argument because it shows many parts of one body system all working to help protect the student.

• The model does not support the argument because it shows many body systems working together to help protect the student.

Tags

NGSS.MS-LS1-3

Match the correct response to the environment in the process of thermoregulation.

• In a hot environment, increased skin blood flow allows more heat to be lost to the environment, sweating release heat as it evaporates from the skin, and flat hairs prevent heat from being trapped near the skin. In a cold environment, shivering generates thermal energy for the body, decreased blood flow helps to conserve heat in the core, and hairs stand up to help trap warm air near the body.

• In a cold environment, increased skin blood flow allows more heat to be lost to the environment, sweating releases heat as it evaporates from the skin . In a hot environment, shivering generates thermal energy for the body, decreased blood flow helps to conserve heat in the core, and hairs stand up to help trap warm air near the body.