Force Experiments
How many times should you do an experiment for accurate results?
Many times (at least three trials)
How does light travel? (2 descriptors)
Fast and in a straight line
When is your shadow the shortest? What time of day and why.
Noon because the sun is directly overhead.
What does the Earth orbit?
The Sun
What powers the water cycle?
The Sun
How many variables should you change while doing an experiment?
Just the one you're testing.
This is what happens when light hits an object and bounces off of it.
Reflection
What times of day will your shadow be the longest and why?
Sunrise or sunset
What causes day and night?
The rotation of the Earth on its axis.
Give an example of condensation that is not part of the water cycle.
Answers Vary
What tool can be used to measure force, and what unit is force measured in?
Spring Scale measures in Newtons
This is what happens when light travels through an object and changes direction (bends).
Refraction
If there is 14 hours of nighttime on day, how much day time would there be?
10 hours
If you used a soccer ball for a model of the Earth, what objects could you use for the Sun and Moon?
Answers vary
Name the 8 planets in our solar system, in order.
mercury, venus, earth, mars, jupiter, saturn, uranus, neptune
Name two ways to reduce the amount of force it takes to move an object.
Answers vary (reduce friction, use simple tools like wheels or ramp, decrease mass of object moving, etc.)
This is what happens when light hits an object and is taken in by the object.
Absorbtion
Where does the sun rise/set and at what times?
Rise in East, Set in West, Approximately 6 AM and 6 PM
What causes the seasons (2 reasons)
The tilt of the Earth and the revolution around the Sun.
Name which of the following gets the hottest, and which gets the coldest: Earth, Moon, and Sun
Sun gets the hottest, and Moon gets the coldest
Find the average of these measurements from a force experiment: 17, 39, 23, and 20
24.75
When using a magnifying glass, does light reflect off of it or refract through it. How do you know?
Refract because the light has to go through the glass. If it reflected, it wouldn't go through it. Also, the image appears different because the glass bends the straight lines
What happens to a shadow as an object gets closer to a light source?
It gets bigger.
Why does the Earth have less craters than the moon? (List 3 reasons)
Atmosphere, Water, and Erosion
Describe Evaporation and Condensation (at least one similarity and difference)
Evaporation - liquid gaining heat and being turned into a gas
Condensation - Gas losing heat and being turned into a liquid