Observing Stars

Essential Question: What do we know about stars?

Focused Question for this Exploration: How can we protect our bodies from harmful effects of the Sun?

Standards:

Earth in Space and Time:

·SC.1.E.5.1: Observe and discuss that there are more stars in the sky than anyone can easily count and that they are not scattered evenly in the sky.

The Practice of Science

·SC.1.E.5.3 Investigate how magnifiers make things appear bigger and help people see things they could not see without them.

·  SC.1.E.5.4 Identify the beneficial and harmful properties of the Sun.

Engage / ·Show students "Mystery Beads"? Ask students what they notice about
the beads. Ask students what they think will happen if the beads are outside?
Will there be a change? Students will predict whether there will be a change on
the lab sheet.
Explore / ·  Students will go outside with their "Mystery Beads" for five minutes.
Students will record observations on their lab sheet. Students will record
what they think happened. They will explain why they think the beads changed color.
Explain / ·Have you ever been outside in the sun for a long time? Did your skin turn red or hurt when touched? You probably had a sunburn! The Sun gives us more than
just light we can see. It also gives off rays that are invisible. Some of these
rays are called ultraviolet (UV) light rays. UV light from the Sun causes
sunburns and can also hurt your eyes. you can protect your skin and eyes
from the Sun by wearing sunscreen, sunglasses, and a hat. Special beads called
UV beads will change color when put in UV light . UV beads are white light of a lamp
and show their colors when they are in sunlight.
Extend / ·Ask students what they could try now that they know the UV light effects
the beads. What could we do to protect the beads from UV light. Students
may want to try hiding the beads under their shirts, put them in the shade, or use sunscreen.
Evaluate / ·Students will write a Sun Safety Tip in their Science Journals.