Prove It 1 (Marathon Runner)

1. Which of the following is considered to be a phenomenon?

• a. Volcanoes can produce lightning during an eruption, ash picks up so much friction that the build-up of static electricity causes lightning.

• a. Desert rose is a special form of the mineral gypsum that can develop in dry sandy places that occasionally flood.

• a. If you heat frozen methane trapped in the Siberian permafrost enough, it turns into a gas, eventually building up so much pressure that the ground explodes, there is a loud boom and a giant hole that forms with these bursts.

• a. Formally known as the "Richtat structure," the Eye of the Sahara is in Mauritania. Scientists are still trying to confirm how it was formed, but they think it's the eroded remains of a giant dome of rock.

Tags

NGSS.MS-ESS2-2

1. ________ blood is moving from the lungs and heart, towards the body; _________ blood is moving from the body (muscles, organs) towards the heart and lungs.

• Arterial: Venous

• Venous: Arterial

• Carbon Dioxide: Oxygen

• Carbon: Oxygen

1. What is a phenomenon?

• A situation that is observed whose cause or explanation is in question.

• A fact or situation.

• A study of nature.

• A situation that is observed.

1. Students are conducting an experiment to determine if sugars are present in foods. They heat a test tube containing a sugar solution in a beaker of water.

Which of these is an unsafe laboratory practice in this experiment?

• heating the sugar solution in a closed test tube

• rinsing hands with water after handling the materials

• using a test tube clamp to hold the test tube

• wearing safety goggles while heating the sugar solution

The science of life is called

• biology

• ecology

• morphology

• a. phylogeny

A hypothesis is a testable statement that

• is considered unscientific because it is not a theory

• can be supported in all circumstances

• if false, can be demonstrated to be false through experimentation.

• is the final step in every research project

Breathing occurs when humans take in oxygen and give out….

• Hydrogen

• Nitrogen

• Carbon Dioxide

• Helium

Which statement best describes a change that usually takes place in the human body when the heart rate increases as a result of exercise?

• More oxygen is delivered to muscles.

• Blood cells are excreted at a faster rate.

• The rate of digestion increases.

• No hormones are produced.

Cellular respiration is called an aerobic process because it requires ____.

• light

• exercise

• oxygen

• glucose

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3