Science Is Real

Jose wants to create an excellent science fair project for the school competition. In order for his

project to be valid, which of the following must happen?

• The project must include his beliefs.

• The results must be based on evidence.

• The project must prove his predictions correct.

• The results must be based on personal opinion.

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NGSS.MS-PS1-2

Which of the following statements about science is TRUE?

• Science always contains the opinions of the investigator.

• Science proves the predictions of scientists to be correct.

• Science is based on observation or measurement that answers a question.

• Science answers all questions using strict rules called the scientific method.

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NGSS.MS-LS1-5

NGSS.MS-PS1-2

Which of the following is the main purpose of a scientific investigation?

• to prove a scientific law

• to determine the investigator's opinion

• to answer questions about the natural world

• to support results from previous investigations

Which of the following should be a goal of a scientific investigation?

• to help the scientist make money

• to make sure the scientist is correct

• to help the scientist solve a problem

• to make sure other scientists are incorrect

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NGSS.MS-LS1-3

Ellie conducts an investigation to determine if size or weight affect how fast objects fall. Her investigation includes repeatedly dropping a basketball and a golf ball at the same time. After many trials, she determines that both balls land at the exact same time.

Why would Ellie's investigation be valid?

• It includes her opinion.

• It is based on evidence.

• It uses objects that move.

• It proves her predictions are correct.

Tags

NGSS.MS-PS2-2

Dr. Jones thinks she has just discovered a new plant species. How should she best communicate her

findings with other scientists?

• Try to find another plant to discover.

• Post her discovery on the internet as fact.

• Publish her discovery for other scientists to test.

• Call her friends and tell them about the discovery.

Maria and her brother like

to go fishing at the lake on Saturdays. They wondered if fish were more

likely to bite at one time of day than another. They decided to try an experiment the next two

Saturdays.

On the first Saturday, it was hot and sunny, and they went fishing in the morning. Maria and her brother

caught a total of five fish. On the second Saturday, it was overcast and cool, and they went fishing in the

afternoon. They only caught a total of three fish this time. Can they conclude that fish bite better in the

morning?

• Yes. They caught more fish in the morning, so morning is a better time to fish.

• Yes. It is more likely to be sunny in the morning, and fish bite better when it is sunny.

• No. They will need to repeat their experiment several times, since the weather conditions and times were different both days.

• No. They only did their experiment on Saturdays, so they don't know if they would get the same results on other days.

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NGSS.MS-LS2-4

Ximena is an expert at blowing bubbles with bubble gum. She discovered that her bubbles were

bigger if she stood facing the Sun when she blew them. At lunch she told her three best friends about

her discovery and after school they all tried it. No one else was able to blow bigger bubbles when they

faced toward the Sun.

Which of the following would be best for Ximena to do next?

• She should give them each bigger pieces of bubble gum and try it one more time.

• She should prove she is right by blowing bubbles while her friends are watching.

• She should ask her friends to try it again and concentrate harder when they face the Sun.

• She should think about what else she is doing that might have

  made the bubbles bigger.

om is creating an experiment to see what food his pet lizard likes the best. He creates an experiment

in which he offers his lizard a choice of crickets or mealworms. He records how much of each choice is

eaten each day. At the end of two weeks, Tom finds the lizard has eaten a few more mealworms than

crickets.

What must Tom do to be sure his results are valid?

• include another food option besides crickets

• repeat the same experiment to confirm his results

• buy additional lizards and begin multiple experiments

• feed only mealworms for a while then offer a choice again

Juana decided to find out if it was worth spending the money to buy bags of potting soil sold at the

store. She bought one bag of potting soil and some bean seeds. At home she put potting soil in ten pots

and soil she dug up from the yard in ten other pots. She planted one bean seed in each pot.

After one week, all twenty seeds had sprouted and all the seedlings had two leaves. She concluded that

her soil was just as good as potting soil.

What would be the

best

thing for Juana to do next?

• Repeat the experiment to see if she gets the same results.

• Mix the potting soil with her soil and see how seeds grow in it.

• Start watering some of the plants in each group twice as much.

• Let the plants grow in different soil types to see if they remain healthy.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1