QUARTER 1

Name:

Hour:

• 3A
• 5A
• 6A
• 7A
• 8A

What is the first step in the engineering design process?

• Engineers build their solution.
• Engineers test their solution.
• Engineers understand the problem.
• Engineers choose the best idea and make a plan.

What do engineers do after they understand the problem?

• They build a model.
• They test their solution.
• They choose the best idea.
• They come up with ideas.

What are the things you mix together in a chemical reaction called?

• products
• Reactions
• Reactants
• Chemicals

What happens to the atoms in the reactants during a chemical reaction?

• They disappear.
• They stay the same.
• They change into different atoms.
• They break apart and rearrange.

What is an example of a chemical reaction that happens when you light a candle?

• The candle wax melts.
• he flame gets bigger.
• Option 3
• The candle wax and oxygen in the air react to make heat and light.
• The candle burns out.

Why might engineers go back and change things in the engineering design process?

• They might want to make their solution better.
• They might not have enough materials.
• They might not have enough time.
• They might not have enough money.

What are the three main categories of matter?

• Solids, liquids, and gases
• Mixtures, elements, and compounds
• Physical properties and chemical properties
• Filtration, evaporation, distillation, and chromatography

What are the three states of matter?

• solid, liquid, gas
• Solid, liquid, plasma
• Gas, plasma, liquid
• Solid, gas, plasma