DCA review

DCA review

Day 1

DCA 2

• Will be a mix of EVERYTHING we have studied so far this year

• Force and Motion

• Mixtures and Solutions

• Matter / Light

• Weather and Climate

• Earth, Sun, and Moon

• Changes to Earth's surface

Multiple Choice

Which change occurs when lemon juice is mixed with water?

• The mass of the lemon juice decreases.

• The water becomes a solid.

• The lemon juice dissolves and spreads out evenly in the water

• The volume of the water decreases.

Open Ended

What does SOLUBILITY mean?

type in your answer!

Multiple Choice

Which actions will make moving the cart in one direction easiest for the students?

• Student 1 pulls the cart to the left while Student 2 pulls the cart to the right.

• Student 1 pulls the cart to the left while Student 2 pushes the cart to the left.

• Student 1 pushes the cart to the right while Student 2 pushes the cart downward.

• Student 1 pushes the cart to the right while Student 2 pulls the cart upward.

Poll

What is a physical property?

• The way an object looks

• The way an object behaves

• The way an object looks and behaves

Open Ended

List TWO physical properties of a pencil.

Type your answer in

Poll

What are the states of matter?

• solid, liquid, light

• solid, liquid, gas

• gas, juice, fire

Multiple Choice

In which mixtures do all the ingredients maintain their physical state?

• Mixtures 3 and 4 only

• Mixtures 1, 3, and 4

• Mixtures 1, 2, and 5

• Mixtures 2 and 5 only

How does light travel?

• light travels in a _____ line

• light can be reflected, or refracted

• Light will change speed depending on which medium it is traveling in

• 
  

• 
  

• 
  

• 
  

Multiple Choice

What does the picture demonstrate about light?

• Light and its reflections travel in straight lines.

• Light cannot reflect from more than one surface.

• Light that goes through water cannot travel in straight lines.

• Light can travel in a circular path.

Multiple Choice

Which statement correctly describes how a landform is formed?

• A lake is formed when flowing water carves out the sides of a canyon.

• A mountain range is formed when glaciers slowly move across the landscape.

• A delta is formed at the mouth of a river when flowing water slows and deposits sediment.

• A U-shaped valley is formed when winds pick up and move sediment away from the landscape.

Multiple Choice

Which two switches can be open and still allow all of the parts to work?

• Switches 1 and 3

• Switches 1 and 4

• Switches 2 and 3

• Switches 3 and 4

Multiple Choice

Which process does this diagram most likely represent?

• The erosion of a coastline

• The deposition of sediments

• The weathering of a mountain

• The formation of a sea

Multiple Choice

A scientist finds the plant fossil shown. Which question can the scientist most likely answer by examining this fossil?

• What was the average monthly rainfall in the area?

• How much water was absorbed by the roots of the plant?

• How much oxygen was in the atmosphere surrounding the plant?

• What was the environment like in the area when the plant was alive?

Multiple Choice

The moon, the sun, and Earth have different physical characteristics. Which of these best describes a physical characteristic of the sun?

• It is solid and has many layers.

• It rotates on its axis every 24 hours.

• It is mostly made of hydrogen and helium.

• It is smaller and has less gravity than Earth or the moon.

Multiple Choice

Which landform is a result of rapid changes to Earth’s surface?

• U-shaped valley

• Limestone cave

• Mountain range

• Volcanic island

Multiple Choice

Each of these activities requires the use of which kind of energy?

• Thermal

• Mechanical

• Electrical

• Electrical