No Bones About It Science Olympiad

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

NGSS.MS-PS3-4

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

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

When a bat searches for prey at night, it makes sounds as it flies, and it uses the sounds' echoes to find its prey. When the bat flies and listens to echoes to locate prey, it is using -

• thermal energy and light energy

• sound energy and thermal energy

• mechanical energy and sound energy

• light energy and mechanical energy

Tags

NGSS.MS-PS4-2

Which of these best demonstrates the reflection of light?

• Looking through the glass of a large window.

• Looking at an image formed on a silver spoon.

• Looking at a lightbulb that is glowing.

• Looking at a star on a clear night.

Tags

NGSS.MS-PS4-2

An echo is an example of a sound wave being

• transmitted

• absorbed

• reflected

• surfed

Tags

NGSS.MS-PS4-2

An example of an extrusive igneous rock that does not have any crystals.

• Granite

• Basalt

• Pumice

• Obsidian

Choose the object that is an opaque object.

• Wood

• Paper

• Glass

• Water

Tags

NGSS.4-PS4-2

Which of the following bones is part of the human axial skeleton?

• Femur

• Humerus

• Sternum

• Tibia

What is the primary function of the rib cage in the human body?

• To protect the brain

• To support the body's weight

• To protect the heart and lungs

• To aid in digestion