In a Middle School Science Lab Activity, Students Are Looking

question 17

Multiple Choice

In a middle school science lab activity, students are looking at how much water objects of varying sizes and weights displace. Lab partners Jack and Jennifer have just put two equal-size balls-one made of plastic and one made of lead-into separate beakers of water and measured how high the water rose in each one. They've observed that the water rose the same amount in the two beakers. Jack says, "That can't be right. The lead ball should push the water up more because it's heavier." Jennifer responds, "We must have measured wrong. Let's try the experiment again." The two students' reasoning reflects:

• A) confirmation bias
• B) a substance schema
• C) poor visual-spatial ability
• D) a nativist view of science development

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Definitions:

Tickets

Documents or electronic vouchers that grant the holder permission to enter a place, travel on a vehicle, or participate in an event.

Marginal Revenue

The additional income received from selling one more unit of a good or service.

Demand Curve

A graph showing the relationship between the price of a good and the quantity of the good that consumers are willing and able to purchase at various prices.

Elasticity

A measure of how much the quantity demanded or supplied of a good responds to a change in one of its determinants, such as price.