WCPSS Science Jam Practice

Front

What pulls objects to the center of the Earth?

Back

gravity

Front

Kayla has a wooden rod, a steel rod, and a glass rod. How could she compare the materials to find out which transfers thermal energy BEST?
Options:
1. Submerge each rod in ice water to find out which loses the most heat.
2. Place the three rods in a freezer to find out which becomes the coldest.
3. Place one end of each rod in very hot water to find out which becomes hot the fastest.
4. Place the rods on a table in a warm room and find out which feels warmest after a period of time.

Back

Place one end of each rod in very hot water to find out which becomes hot the fastest.

Front

Best describes an example of heat transfer through radiation?

• getting warm in front of a portable heater
• burning your finger on a curling iron
• ironing a dress shirt and tie
• cooking soup on the stove

Back

getting warm in front of a portable heater

Front

Which is an inherited characteristic on a horse?

Back

a long mane

Front

The picture shows a polar bear. Which change in the environment would MOST likely decrease the ability of this animal to survive?

Back

increase in Earth’s temperature

Front

Which of the following is an example of a chemical change? clouds forming, sugar dissolving, water freezing, a candle burning

Back

a candle burning

Front

Which two human body systems are MOST responsible for getting oxygen to cells?

Back

circulatory and respiratory

Front

How does the Sun’s energy change water?

Back

The energy makes water vapor from liquid water

Front

What keeps Earth in orbit around the Sun?

Back

the Sun’s gravitational pull

Front

Otto pushed a toy car across a floor. The car traveled fast across the wood, but it slowed to a stop on the carpet. Which BEST explains what happened when the car reached the carpet?

Back

Friction increased.