Review for Unit 1 Amplify.

What is the main problem that the inventors of the Little Sun lamp wanted to solve?

• How to make lamps look more attractive

• How to provide cheap, reliable electricity to people without access to it

• How to make lamps heavier

• How to use more batteries in lamps

Tags

NGSS.MS-ETS1-1

What does the solar panel on the back of the Little Sun lamp do?

• It stores water for the lamp

• It converts light energy from the sun into electricity

• It makes the lamp heavier

• It changes the color of the lamp

Why is burning kerosene for light a problem, according to the text?

• It is too expensive to buy

• It produces thick, black smoke that causes lung disease and can cause fires

• It is not bright enough

• It is only available during the day

Tags

NGSS.MS-PS1-3

Why might students in some places have trouble studying after dark?

• They do not have enough books

• They do not have access to electricity for lighting

• Their teachers do not allow it

• They prefer to study in the morning

Imagine you are an engineer trying to help people who don’t have access to electricity. Based on the information in the text, what is one important feature your invention should have?

• It should be very expensive

• It should use a lot of batteries

• It should provide portable, reliable energy without polluting the air

• It should only work in big cities

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ESS3-3

What is the main source of energy for the Little Sun lamp?

• Wind

• Water

• Sunlight

• Human body heat

Tags

NGSS.MS-PS3-3

Which of the following is a benefit of the Hollow Flashlight invented by Ann Makosinski?

• It needs batteries to work

• It is heavy and expensive

• It lights up using the heat from the human hand

• It uses solar panels to charge

Tags

NGSS.MS-PS3-3

Why did Ann Makosinski invent the Hollow Flashlight?

• To help her friend in the Philippines study at night

• To win a science competition

• To replace solar lamps

• To use in her own home

Compare the Little Sun lamp and the Hollow Flashlight. What is a key difference in how they are powered?

• The Little Sun lamp uses wind, while the Hollow Flashlight uses water.

• The Little Sun lamp uses sunlight, while the Hollow Flashlight uses human body heat.

• Both use batteries to store energy.

• Both need to be plugged into an electrical grid.

Imagine you live in a place with no electricity and it is nighttime. Which invention would help you study, and why?

• A solar-powered lamp, because it stores sunlight from the day to use at night.

• A wind turbine, because it works best indoors.

• A water-powered generator, because it is easy to carry.

• A regular flashlight, because it never needs batteries.