FIFTH GRADE SCIENCE

• The wind will continue to blow in the same direction
• The wind will blow in the opposite direction.
• The wind will increase in speed.
• The wind will stop.

Which best explains why the air near the top of a mountain is cooler than air at the base of a mountain?

• As air pressure decreases, temperature decreases
• As air pressure increases, temperature decreases
• As wind speed decreases, temperature decreases
• As wind speed increases, temperature decreases

Alex is building a car to race down a ramp. The car weighs 100 grams.Which could Sam do to increase the speed of the car?

• increase the mass of the car
• decrease the mass of the car
• increase the friction on the ramp
• change the color of the car

When pushed with the same amount of force across a desk, which toy car would most likely travel the fastest?

• a car weighing 25 grams
• a car weighing 20 grams
• a car weighing 15 grams
• a care weighing 30 grams

Megan added 100 g of water to a pot that weighed 600 g, placed a 200-g airtight lid on top, and boiled the water. After boiling, why does the container still have a mass of 900 g 

• The water evaporated and left the pot.
•  The water did not go through any change.
•  The water was heated, adding mass to the pot
• The water evaporated but then condensed on the lid.

Which shows an example of convection?

• Jose cooks an egg in a pot of boiling water
•  Clara burns her hand by touching a light bulb.
•  Kevin wraps herself in an electric blanket to keep warm.
• Alexis holds the end of a metal rod in fire to cook hot dogs.

What causes ocean water to evaporate in the water cycle?

• energy from the sun
• energy from ocean waves
• energy from earth's rotation
• energy from earth's moon

Steve’s class is visiting the zoo. He observes that the stripe patterns of two zebras are very different. Which most likely explains why the zebras have different stripe patterns?

• The zebras eat different types of grass
• The zebras are active at different times in the day
• The zebras react to their habitat at the zoo in different ways.
• The zebras are expressing the trait for stripe pattern in different ways

Timothy is a fifth grade boy with brown hair. Neither of Timothy’s parents has brown hair. Which is the most likely reason Timothy has brown hair?

• Brown is Timothy’s favorite color.
• One of Timothy’s grandparents has brown hair
• Timothy’s mother wanted him to have brown hair.
• Most of the boys in Timothy’s class have brown hair.

Which best explains why El Niño could cause an increase in precipitation in California?

• Cooler ocean water causes the air to cool, which allows for morecondensation to occur in the United States.
• Warmer ocean water allows for warm air to be blown toward theUnited States and cause droughts.
• Cooler ocean water causes the air to cool, and brings high airpressure to the United States
• Warmer ocean water allows for warmer, wet air to travel east toward the United States.