Base your answers on the picture and the information below.

The two plants, T and U, were given the same amount of water and soil. However, plant U was placed in a box. a. Form a hypothesis. b. What is the independent and dependent variables?

Hypothesis- If plant U is placed in a box, then it will not grow as much as plant T because plant T is receiving more sunlight.

Independent – Amount of sunlightDependent- plant growth

Cups A and B are filled with same temperature of water and one sugar cube. Which cup will dissolve faster and why?

Cup A will dissolve faster because A is being stirred.If both cups are not stirred, you can increase the water temperature to help them dissolve faster.

All _ _ _ _ _ _ is made up of particles called_ _ _ _ _

M

M

T T

A

A E R

T O S

Draw the molecules in the solid, liquid and gas phases.

Flask A shows a set up before a chemical reaction. Flask B shows what occurs after a chemical reaction.

The mass of Flask A and B are the same before and after the chemical reaction.

What Law is shown in this experiment?

A B

The Conservation of MassMatter is never created nor destroyed!

Physical Changes Chemical Changes

Sort the following pictures to its proper location on the T- chart.

• gas • solid• liquid• freezing

• sublimation

• vaporization• melting• condensation

Solid

liquid

gas

freezing

condensation

melting

vaporization

sublimation

The diagrams show two different items being placed in graduated cylinders containing water. What is the volume of the items?

10 mL 4 mL

Which picture goes with which of Newton’s 3 Laws?

Explain why…

1st Law- Law of Inertia

An object at rest will stay at rest 2nd- F=maThe more mass you have, the more force you’ll have

3rd- for every action there is an equal and

opposite reaction

Elements Oxygen, Sulfur, Selenium, Tellurium and Polonium are all found in the same group (18) on the table. These elements are grouped together because

a. they are all metals b. they react in similar ways

The graph below shows the distance traveled by three different bees.

Which bee traveled at an average of 20 m/s?

Average speed = distance traveled time

AB

C

ABee A 20 = 20 m/s 1

Bee B 20 = 10 m/s 2

Bee C 10 = 10 m/s 1

Identify the transformations of energy.

Chemical to mechanical

Renewable Nonrenewable

Identify the types of energy as renewable or nonrenewable.

Why is the moon’s surface visible to an observer on Earth?

The moon reflects the sun’s rays.

In which diagram would the block of wood have the greatest acceleration?

4 kilograms10 Newtons

Diagram A

4 kilograms12 Newtons

Diagram B3 kilograms

20 Newtons

Diagram CHINT!!!!F = ma

Other than cost of building a hydroelectric plant, what is one disadvantage of using

moving water to produce electricity?

Kills the fish and water wildlife.

Which property of light is illustrated when the boy looks into the fish bowl?

Perceived location

Actual location

Refraction

The golfer is using a club to hit a golf ball towards the hole. In which diagram does the golfer have the greatest potential energy and why?

A B C

Because the golfers club is at the highest point in the swing.

The diagram shows a toy car. The propeller is turned 10 times, which twists the rubber band connected to it. When the rubber band is released, the propeller turns enabling the car to drive.

What type of energy results when the rubber band unwinds and the propeller turns, enabling the car to drive?

Kinetic

The diagrams below shows two different surfaces the car will be pushed on. The car can be pushed on either surface. Which surface will allow the car to use less energy and why?

Ice because there is less frictionBetween the surface and the car.

What do the arrows represent on the food chain below?

a. life cycle c. one community replacing another

b. flow of energy d. renewable resource depletion

Organisms that break down _ _ _ _ _ to obtain nutrients that need to survive are _ _ _ _ _ _ _ _ _ _ _

Wd e c o m p o s e r s

a s t e

1. What would happen within the food web if the trout were eliminated from the population?

2. What two animals are herbivores?

1. List these five forms of EM energy in order from longest wavelength to shortest wave length. ( x- rays, radio waves, visible light, microwaves, ultra violet)

2. Which type of EM energy can cause sun burns?

3. Which type of EM energy cooks food?

4. Which type of EM energy is used to treat cancer patients?

5. Which type of EM energy is made up of various colors?

Radio waves, microwaves, visible light, ultra violet, x rays

Ultra violet

microwaves

gamma

Visible light