What physical properties (characteristics) can you analyze to identify substances? List 3 examples.
1.
2.
3.
Question 9
9.
Question 10
10.
How can humans help protect environments? Write your answer with a complete sentence.
Question 11
11.
Question 12
12.
***Bonus: What is located at 23.5 degrees north of the equator?
Question 13
13.
***Bonus: What is located at 23.5 degrees south of the equator?
Question 14
14.
Question 15
15.
A student dropped a penny in water and it sank. Another student demonstrated how to make the penny float. What did the 2nd student do to make it float?
Question 16
16.
What physical property is demonstrated in question 15?
Question 17
17.
If cool weather collides with low pressure and an inflow of Gulf moisture what do you think the meteorologist will predict the weather to be like in a day or so?
A. dry
B. windy
C. hot
D. rainy
Five mL of salt is added to 250 mL of water. Predict what will occur to the crystals of salt when it is mixed in with water.
A. The salt will actually disappear.
B. The salt will dissolve.
C. The salt will evaporate.
D. all of the above
In the saltwater solution from question 2, if all the water evaporates how much salt is left behind?
A. 2 mL
B. 250 mL
C. 5 mL
D. 10 mL
Ann and Jane live the same distance from the park. Ann lives on a dirt and gravel street. Jane lives on a paved road. If they leave their homes at the same time riding bikes, which girl would most likely reach the park first?
A. Ann will be first because of having less friction.
B. Jane will be first because of having less friction.
C. Ann will be first because of having more friction.
D. Jane will be first because of having more friction.
Marcus is helping his dad move a large rock in their backyard to make a new flower garden. What type of machine(s) would be useful to make the work easier?
A. a lever
B. an inclined plane (ramp)
C. a pulley
D. a wheel and axle
What physical properties (characteristics) of soil would you observe when onlyusing a hand lens or microscope and your hands?
A. mass
B. texture
C. particle size
D. volume
E. color
There are physical characteristics of the land that support the animals which live there. How would you describe the soil? The soil needs to include____________________
A. nutrients
B. minerals
C. the ability to provide food and shelter
D. all of the above
E. A & B
Which statement(s) below explains why the Earth experiences seasons?
A. the rotation of the Earth on its axis
B. the revolution of the Earth in an elliptical path
C. the 23.5 degree tilt of the Earth
D. the moon's orbit around the Earth
Place the decription in the correct category of inherited traits or learned behaviors.
rollling in dirt to take dust baths
fur color
acute sense of smell
fighting with other males by crashing
heads together
poor eyesight
eye color
inherited traits
learned behaviors
Match the forms of energy to how it is used in a home.