WCPSS Science Jam Practice

What pulls objects to the center of the Earth?

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.

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

Which is an inherited characteristic on a horse?

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

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

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

How does the Sun’s energy change water?

What keeps Earth in orbit around the Sun?

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?