Codebusters Science Olympiad

What is the purpose of the Science Olympiad Codebusters event?

• To test knowledge of scientific theories.

• To promote teamwork and collaboration.

• To showcase creativity and innovation.

• To test coding and problem-solving skills.

Two wires carrying electricity can create a spark if they come too close together. This spark can start a fire. Wires carrying electricity are usually covered with plastic to keep them from starting a fire. Why does the plastic keep the electricity from starting a fire?

• Plastic is a good insulator.

• Plastic is softer than wire.

• Plastic can melt when heated.

• Plastic conducts electricity.

A student measures the temperature of water being heated on a hot plate. The student observes that the temperature of the water is 53°C. How many more degrees Celsius must the temperature rise before it reaches the boiling temperature of water?

• 159°C

• 69°C

• 20°C

• 47°C

Tags

NGSS.MS-PS1-4

A student observed liquid wax dripping down the side of a burning candle. After putting out the candle's flame, the student left the room. Several hours later the student observed that there was no longer any liquid on the side of the candle. Which statement explains what most likely happened to the liquid wax?

• The heat given off by the flame caused the candel wax to evaporate.

• The liquid wax changed back into a solid as it cooled.

• The liquid wax condensed and was absorbed by the candle.

• None of the above

Tags

NGSS.MS-PS1-4

Physical or Chemical Change?  Iron rusts

• Physical Change

• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens to the temperature of a substance when its particles move faster?

• It decreases

• It increases

• It stays the same

• It becomes unpredictable

Tags

DOK Level 2: Skill/Concept

What happens to the particles of a solid as it melts to become a liquid?

• They compress and move slower

• They expand and move faster

• They vanish and reappear as liquid

• They remain unchanged

Tags

DOK Level 1: Recall

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

• The metal pan creates thermal energy.

• The metal pan insulates thermal energy.

• The metal pan conducts thermal energy.

• The metal pan reduces thermal energy.

A student fills two identical beakers with the same volume of water. The student places on beaker in the freezer and the other beaker on a hot plate. After 5 minutes the student observes that the temperature of the water in the freezer is 19°C and the temperature of the water on the hot plate is 42°C. Which statement best describes the relationship between the two beakers of water and the freezing and boiling point of water?

• The temperature of the water on the hot plate must increase 58°C before it boils, and the temperature of the water in the freezer must decrease 32°C before it freezes.

• The temperature of the water on the hot plate is closer to the boiling point than the temperature of the water in the freezer is to the freezing point.

• The temperature of the water in the freezer must decrease by 19°C before it freezes, and the temperature of the water on the hot plate must increase 170°C before it boils.

• The temperature of the water in the freezer is closer to the freezing point than the temperature of the water on the hot plate is to the boiling point.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The law of reflection states that incoming and outgoing angles are

• always the same.

• never the same.

• always large.

• always small.

Tags

NGSS.MS-PS4-2