HS ES What is Science 1.1

Open Ended

Intro Question

How do scientists study the world?

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Think about the Paper vs. Plastic Breakout Rooms, what did you and your fellow students agree on?

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Think about the Paper vs. Plastic Breakout Rooms, what did you and your fellow students disagree on?

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Think about the Paper vs. Plastic Breakout Rooms, what surprised you?

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What is one observation you can make from this picture?

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What is one observation you can make from this picture?

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What is one observation you can make from this picture?

​A prediction says that if the hypothesis is true, then it should be possible to make observations that agree with the hypothesis.

Open Ended

Using the hypothesis, write a prediction.

I think insecticides affect plant growth.

Fill in the Blanks

Identify the manipulated variable in the following experiment.

A scientist wonders if pesticide use will affect plant growth. They grow 25 plants in a garden that receives spray pesticides once a week, and 25 plants in a garden that does not receive pesticides. All plants will receive the same amount of light and the same humidity every day. Each plant is the same age and size and will receive the same amount of water and soil. After 1 month, they will measure the height of each plant and record the data.

Fill in the Blanks

Identify the responding variable in the following experiment.

A scientist wonders if pesticide use will affect plant growth. They grow 25 plants in a garden that receives spray pesticides once a week, and 25 plants in a garden that does not receive pesticides. All plants will receive the same amount of light and the same humidity every day. Each plant is the same age and size and will receive the same amount of water and soil. After 1 month, they will measure the height of each plant and record the data.

Fill in the Blanks

Identify the control group in the following experiment.

A scientist wonders if pesticide use will affect plant growth. They grow 25 plants in a garden that receives spray pesticides once a week, and 25 plants in a garden that does not receive pesticides. All plants will receive the same amount of light and the same humidity every day. Each plant is the same age and size and will receive the same amount of water and soil. After 1 month, they will measure the height of each plant and record the data.

Fill in the Blanks

Identify the responding variable in the following experiment.

A scientist wonders if pesticide use will affect plant growth. They grow 25 plants in a garden that receives spray pesticides once a week, and 25 plants in a garden that does not receive pesticides. All plants will receive the same amount of light and the same humidity every day. Each plant is the same age and size and will receive the same amount of water and soil. After 1 month, they will measure the height of each plant and record the data.

Poll

True or False

Arterial (oxygenated) blood is red, while venous (deoxygenated) blood is blue.

• True

• False

​FALSE

​​While some animals have blue blood, humans are not among them. The red color of blood comes from hemoglobin in red blood cells. Although blood is a brighter red when it is oxygenated, it is still red when it is deoxygenated. Veins sometimes look blue or green because you view them through a layer of skin, but the blood inside is red, no matter where it is in your body.

Poll

True or False

The Earth's magnetic field changes every 200,00-300,000 years. Whatn it changes again all compasses will point to the SOUTH pole.

• True

• False

​TRUE

​​Earth’s liquid outer core creates a magnetic field around the planet. The electromagnetic energy leaves Earth’s South Pole, and enter the North Pole. But every 200,000-300,000 years the magnetic field will reverse.

Poll

True or False

Lightnight never stirkes the same place twice.

• True

• False

​FALSE

​If you have watched a thunderstorm any length of time, you know this is not true. Lightning can strike one place multiple times. The Empire State Building gets struck around 25 times each year. Actually, any tall object is at increased risk of a lightning strike. Some people have been struck by lightning more than once.

Poll

True or False

There is a Texas-sized patch of plastic garbage floating in the Pacific Ocean.

• True

• False

​TRUE

The Great Pacific Garbage Patch (GPGP) contains an estimated 79,000 tons of plastic garbage.

The Earth’s ocean currents pool all of the garbage together.