Why Do Ice Skates Work

question 78

Multiple Choice

Why do ice skates work?

• A)The pressure of the blades on the ice creates a temporary water layer.
• B)The pressure of the blades cuts a hole in the ice and water flows in.
• C)The blades are treated with a chemical that melts the ice temporarily, which creates a water layer.
• D)Ice is naturally slippery.

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Definitions:

Inhibitory

Pertaining to a neurotransmitter, neuron, or process that decreases the likelihood of a neuron firing and transmitting its message to other neurons.

Hormones

Chemical messengers produced by glands in the body that regulate physiological processes and behavior.

Endorphins

Natural, pain-relieving chemicals produced by the body that promote a sense of well-being and can reduce pain.

Neurotransmitters

Chemical substances in the nervous system that transmit signals from one neuron to another across synapses.