Food Chains

Food Chains

There are three major roles in a food chain:

producer- produces its own food
consumer- consumer eats another organism
decomposer- causes organisms to decay


PLAY this food chain game

Activity:

In your journal record a food chain that happens in your back yard. (must include atleast three organisms)

Ecosystems

What is an ecosystem?

An ecosystem is a community of living organisms (plants, and animals)  with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system.

Activity

Look at the map below and find where in America Virginia is.
Use the key below the map and find out what ecosystem we have in Virginia.

Mass Metric System

Mass in the metirc system is measured in grams.

You will need to know the difference in size for Kilograms, Grams, and Milligrams

Watch this video on Mass

What would you use to measure the three objects below, Grams or Kilograms?

 Grams or Kilograms?

grams or kilograms?
grams or kilograms?

Measuring length activities 3/28

Check out the sites below and practice measuring length:

Tips to remember:
Make sure to line up your ruler to the end of each object.
Make sure you pay attention to the zero.
Remeber what units (inches, feet, meters) you are using.

estimating length


calculating length


measuring length


In your notebook:

Estimate the length feet of the picture below .

Measurement

Measurement

We are going to learn about three different types of measurement.

Length

Mass

Volume (capacity)

We will use two different systems of measurement to collect our  data

American Customary

Metric

In green are countries that use the metric system of measurement

In red are countries that use the American standard system

Answer the question below in your notebook:

What conclusion can you draw from looking at these two maps?

Electromagnets

What is an Electromagnet?




work on this electromagnet activity


Notebook Reflection:
What are other ways electromagnets are used?

Conductors vs. Insulators

What is the difference between a conductor and an insulator?


watch this video

Can you make a prediction of a few conductors and insulators around your house?
What do they have in common that made you think they would work as conductors?

Electricity

Electricity

Watch this circuit building video

Try this website on circuit making

Activity:
In your journal compare and contrast an open circuit to a closed circuit.

Magnetism

What is magnetism?




Watch this movie


try this new activity

Answer in your notebook:

How is magnetism related to force and motion?

How are magnets used around your house?

Science Review

Force and Motion Review

Further review:

Look over any of the previous lessons on our homework website!

Review movies and interactive games

Click here to watch this review video

Friction

How does Friction affect motion?





Click here for a video on friction

In your notebook:

1. Choose another sport and write about how force and motion are needed in order to play that sport.
Use your science vocabulary words such as:
push, pull, friction, gravity, acceleration

2. Name a sport that relies on there being very little friction and state your evidence.

How does mass effect force and motion?

Mass

Have you ever wondered which bowling ball to choose at a bowling alley and noticed that the heavier the ball the more pins you knocked down?

This is because the mass changes and increases the object force.

Watch this video about how much force is needed to move a large mass in sports:
Pay attention to how much mass the heavy bag has and how little it moves compared to the test dummy.

Answer these questions in your notebook:

Did it look easier to move the 300 pound bag or the smaller test dummy?
How do you think this idea of mass applies to our roller coasters in science class?
Would anything change if we used a clay ball in place of a marble?

More Rollercoaster Science....

There is more to learn about force and motion using roller coasters. Let's watch these two kids explore science with rollercoasters.... While you are watching it, take some notes in your science notebook or on a piece of paper.

If you are having trouble downloading this clip, you can play this game on the internet.