Question

q1. a teacher asks students to compare two objects of the same size: a rock and a sponge. the rock sinks in water, and the sponge floats. what property explains the difference? a. shape b. density c. color d. hardness q2. which object would most likely sink in water? a. cork b. feather c. rock d. foam ball q3. ice floats in water because— a. it has no density b. it is less dense than water c. it is denser than water d. density does not matter q4. which liquid would float on water because it is less dense? a. oil b. honey c. syrup d. milk q5. a ship made of heavy steel floats in water. why? a. steel has no density b. the ships shape spreads out its mass, lowering overall density c. water pushes against the ship to keep it afloat d. the ship floats because of its color p.5.5a.5 - design a vessel that can safely transport a dense substance through water at various distances and under variable conditions. 1. which of these best describes the problem engineers must solve when designing a vessel for dense objects? a) how to make the vessel look the most colorful b) how to make the vessel sink as quickly as possible c) how to carry a heavy object across water without sinking d) how to make a vessel that works only on land

Explanation:

• Q1: Density determines whether an object sinks or floats in a fluid. A denser - than - water object sinks, and a less - dense one floats.
• Q2: Among the options, a rock is the densest and most likely to sink in water. Cork, feather, and foam ball are less dense.
• Q3: Ice floats because it is less dense than water.
• Q4: Oil is less dense than water and will float on it. Honey, syrup, and milk are denser.
• Q5: A ship made of steel floats because its shape spreads out its mass, lowering its overall density to be less than that of water.
• P.5.5A.5 - 1: When designing a vessel for dense objects, the main problem is to carry a heavy object across water without sinking.

Answer:

Q1. B. Density
Q2. C. Rock
Q3. B. it is less dense than water
Q4. A. Oil
Q5. B. The ship's shape spreads out its mass, lowering overall density
P.5.5A.5 - 1. C. How to carry a heavy object across water without sinking