Inside Me Unit Test

Judy took some dead grass and soaked it in water for a few days. Then she looked at it under a microscope. She saw some tiny things moving around under the microscope. How could Judy tell whether what she was looking at were living things? Select all of the following that could be used to decide whether the things Judy saw were living.

• They were too small to see without a microscope.

• The number of them increased.

• They consumed smaller things floating in the water.

• They were floating in water

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Select all the things that are true both of single celled organisms and cells that are part of a multi-celled organism.

• grow

• reproduce

• use energy

• make their own food

• produce waste

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Which of these could be caused by a single-celled organism?

• John left a bicycle out in the rain, and it began to rust.

• Joe mixed baking soda and vinegar, and it started to bubble.

• Mikayla left the milk out overnight, and it smelled sour the next day.

• Jenny put sugar into iced tea and stirred it until it disappeared.

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NGSS.MS-LS1-1

Two places that we found single-celled organisms

• yogurt

• milk

• pond water

• pop

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NGSS.MS-LS1-1

What is the connection between oxygen and food?

• Oxygen is used in the chemical reaction that releases energy from food.

• Oxygen is needed for survival just like food.

• Oxygen dissolves in the blood to help it carry food molecules around the body.

• Oxygen is not used to help break food down into smaller particles.

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Talia was studying the human body in science class and became interested in monitoring her pulse rate and breathing. She noticed her pulse and breathing increased during her dance practice. After practice, she stretched, drank lots of water, and relaxed. She noticed that her pulse and breathing returned to what it was before class. Why did this happen?

• The water helped her cool off and get more energy.

• Her body returned to its normal pulse rate and breathing rate after her energy needs decreased.

• Stretching helped her muscles relax and her breathing to calm down.

• Her body was strong enough to handle the increased rate of exercise.

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Which of the following activities requires you to use energy?

• 
• 
• 
• All of the Above.

In chemistry you learned about open and closed systems. Which of the following is a true statement about the human body?

• The human body is a closed system because matter and energy move from one part of the body to another.

• The human body is an open system because you need to take in air and food for the body to function.

• The human body is a closed system because normally the organs, tissues and cells are internal to the body.

• The human body is an open system because the circulatory system moves food around from one part of the body to another.

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What 2 pieces of evidence support the evidence that processing food is a chemical reaction?

• When we chewed the cracker the taste changed.

• Your heart rate increases when you run.

• The yeast used sugar for food and a gas was created.

• You get tired after eating.

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How are the digestive system and the circulatory system connected?

• They are not connected!

• The digestive system breaks down food and the circulatory system transports the nutrients to our cells for energy.

• They are both part of the body.